69564690 has 64 divisors (see below), whose sum is σ = 199785600. Its totient is φ = 17122752.

The previous prime is 69564689. The next prime is 69564701. The reversal of 69564690 is 9646596.

It is a super-2 number, since 2×69564690² = 9678492189592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6400 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (3121650).

Almost surely, 2^69564690 is an apocalyptic number.

69564690 is an abundant number, since it is smaller than the sum of its proper divisors (130220910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69564690 is a wasteful number, since it uses less digits than its factorization.

69564690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19848 (or 19842 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 69564690 is about 8340.5449462250. The cubic root of 69564690 is about 411.2724497558.

The spelling of 69564690 in words is "sixty-nine million, five hundred sixty-four thousand, six hundred ninety".