69687964 has 12 divisors (see below), whose sum is σ = 129127824. Its totient is φ = 32794304.

The previous prime is 69687949. The next prime is 69687967. The reversal of 69687964 is 46978696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69687967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512344 + ... + 512479.

It is an arithmetic number, because the mean of its divisors is an integer number (10760652).

Almost surely, 2^69687964 is an apocalyptic number.

It is an amenable number.

69687964 is a deficient number, since it is larger than the sum of its proper divisors (59439860).

69687964 is a wasteful number, since it uses less digits than its factorization.

69687964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024844 (or 1024842 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 69687964 is about 8347.9317198933. The cubic root of 69687964 is about 411.5152419050.

The spelling of 69687964 in words is "sixty-nine million, six hundred eighty-seven thousand, nine hundred sixty-four".