69930987 has 12 divisors (see below), whose sum is σ = 108464616. Its totient is φ = 39960480.

The previous prime is 69930983. The next prime is 69930997. The reversal of 69930987 is 78903996.

It is not a de Polignac number, because 69930987 - 2² = 69930983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69930983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237714 + ... + 238007.

It is an arithmetic number, because the mean of its divisors is an integer number (9038718).

Almost surely, 2^69930987 is an apocalyptic number.

69930987 is a deficient number, since it is larger than the sum of its proper divisors (38533629).

69930987 is a wasteful number, since it uses less digits than its factorization.

69930987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475738 (or 475731 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 69930987 is about 8362.4749326979. The cubic root of 69930987 is about 411.9930462741.

The spelling of 69930987 in words is "sixty-nine million, nine hundred thirty thousand, nine hundred eighty-seven".