69928564 has 6 divisors (see below), whose sum is σ = 122374994. Its totient is φ = 34964280.

The previous prime is 69928543. The next prime is 69928567. The reversal of 69928564 is 46582996.

It can be written as a sum of positive squares in only one way, i.e., 62410000 + 7518564 = 7900^2 + 2742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69928567) by changing a digit.

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 as a sum of consecutive naturals, namely, 8741067 + ... + 8741074.

Almost surely, 2^69928564 is an apocalyptic number.

It is an amenable number.

69928564 is a deficient number, since it is larger than the sum of its proper divisors (52446430).

69928564 is a wasteful number, since it uses less digits than its factorization.

69928564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17482145 (or 17482143 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 69928564 is about 8362.3300580640. The cubic root of 69928564 is about 411.9882879129.

The spelling of 69928564 in words is "sixty-nine million, nine hundred twenty-eight thousand, five hundred sixty-four".