84400601 has 4 divisors (see below), whose sum is σ = 84426804. Its totient is φ = 84374400.

The previous prime is 84400583. The next prime is 84400609. The reversal of 84400601 is 10600448.

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 16321600 + 68079001 = 4040^2 + 8251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84400601 is a prime.

It is a super-2 number, since 2×84400601² = 14246922898322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84400609) 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, 7460 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (21106701).

Almost surely, 2^84400601 is an apocalyptic number.

It is an amenable number.

84400601 is a deficient number, since it is larger than the sum of its proper divisors (26203).

84400601 is a wasteful number, since it uses less digits than its factorization.

84400601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26202.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 84400601 is about 9186.9799716773. The cubic root of 84400601 is about 438.6470164109.

The spelling of 84400601 in words is "eighty-four million, four hundred thousand, six hundred one".