404694953 has 4 divisors (see below), whose sum is σ = 435825348. Its totient is φ = 373564560.

The previous prime is 404694947. The next prime is 404694967. The reversal of 404694953 is 359496404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92006464 + 312688489 = 9592^2 + 17683^2 .

It is a cyclic number.

It is not a de Polignac number, because 404694953 - 2¹² = 404690857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404694253) 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, 15565178 + ... + 15565203.

It is an arithmetic number, because the mean of its divisors is an integer number (108956337).

Almost surely, 2^404694953 is an apocalyptic number.

It is an amenable number.

404694953 is a deficient number, since it is larger than the sum of its proper divisors (31130395).

404694953 is a wasteful number, since it uses less digits than its factorization.

404694953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31130394.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 404694953 is about 20117.0314161906. The cubic root of 404694953 is about 739.6778199400.

The spelling of 404694953 in words is "four hundred four million, six hundred ninety-four thousand, nine hundred fifty-three".