87698970 has 32 divisors (see below), whose sum is σ = 233864640. Its totient is φ = 23386320.

The previous prime is 87698951. The next prime is 87698993. The reversal of 87698970 is 7989678.

It is a super-2 number, since 2×87698970² = 15382218678121800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 162136 + ... + 162675.

It is an arithmetic number, because the mean of its divisors is an integer number (7308270).

Almost surely, 2^87698970 is an apocalyptic number.

87698970 is an abundant number, since it is smaller than the sum of its proper divisors (146165670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87698970 is a wasteful number, since it uses less digits than its factorization.

87698970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324827 (or 324821 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 87698970 is about 9364.7728215905. The cubic root of 87698970 is about 444.2882532875.

The spelling of 87698970 in words is "eighty-seven million, six hundred ninety-eight thousand, nine hundred seventy".