87981026 has 16 divisors (see below), whose sum is σ = 157382784. Its totient is φ = 36066624.

The previous prime is 87981013. The next prime is 87981059. The reversal of 87981026 is 62018978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136295 + ... + 136938.

It is an arithmetic number, because the mean of its divisors is an integer number (9836424).

Almost surely, 2^87981026 is an apocalyptic number.

87981026 is a deficient number, since it is larger than the sum of its proper divisors (69401758).

87981026 is a wasteful number, since it uses less digits than its factorization.

87981026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273265.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 87981026 is about 9379.8201475295. The cubic root of 87981026 is about 444.7640477870.

The spelling of 87981026 in words is "eighty-seven million, nine hundred eighty-one thousand, twenty-six".