404864701 has 4 divisors (see below), whose sum is σ = 404915004. Its totient is φ = 404814400.

The previous prime is 404864683. The next prime is 404864717. The reversal of 404864701 is 107468404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 116748025 + 288116676 = 10805^2 + 16974^2 .

It is a 3-Lehmer number, since φ(404864701) divides (404864701-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404864701 is a prime.

It is a super-2 number, since 2×404864701² = 327830852231638802, which contains 22 as substring.

It is a deceptive number, since it divides R_404864700.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404864771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10060 + ... + 30181.

It is an arithmetic number, because the mean of its divisors is an integer number (101228751).

It is a Poulet number, since it divides 2^404864700-1.

Almost surely, 2^404864701 is an apocalyptic number.

404864701 is the 10061-st decagonal number.

It is an amenable number.

404864701 is a deficient number, since it is larger than the sum of its proper divisors (50303).

404864701 is a wasteful number, since it uses less digits than its factorization.

404864701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50302.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 404864701 is about 20121.2499860222. The cubic root of 404864701 is about 739.7812239802.

The spelling of 404864701 in words is "four hundred four million, eight hundred sixty-four thousand, seven hundred one".