69966872 has 16 divisors (see below), whose sum is σ = 132415560. Its totient is φ = 34656064.

The previous prime is 69966863. The next prime is 69966899. The reversal of 69966872 is 27866996.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 40013 + ... + 41724.

Almost surely, 2^69966872 is an apocalyptic number.

It is an amenable number.

69966872 is a deficient number, since it is larger than the sum of its proper divisors (62448688).

69966872 is a wasteful number, since it uses less digits than its factorization.

69966872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81850 (or 81846 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 69966872 is about 8364.6202543809. The cubic root of 69966872 is about 412.0635054651.

The spelling of 69966872 in words is "sixty-nine million, nine hundred sixty-six thousand, eight hundred seventy-two".