69520690 has 16 divisors (see below), whose sum is σ = 125400960. Its totient is φ = 27749680.

The previous prime is 69520681. The next prime is 69520727. The reversal of 69520690 is 9602596.

It is a happy number.

It is a super-2 number, since 2×69520690² = 9666252676152200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2170 + ... + 11989.

It is an arithmetic number, because the mean of its divisors is an integer number (7837560).

Almost surely, 2^69520690 is an apocalyptic number.

69520690 is a deficient number, since it is larger than the sum of its proper divisors (55880270).

69520690 is a wasteful number, since it uses less digits than its factorization.

69520690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 69520690 is about 8337.9068116644. The cubic root of 69520690 is about 411.1857208688.

The spelling of 69520690 in words is "sixty-nine million, five hundred twenty thousand, six hundred ninety".