87740156 has 24 divisors (see below), whose sum is σ = 176029056. Its totient is φ = 37485360.

The previous prime is 87740141. The next prime is 87740161. The reversal of 87740156 is 65104778.

It is a congruent number.

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, 4535 + ... + 14001.

It is an arithmetic number, because the mean of its divisors is an integer number (7334544).

Almost surely, 2^87740156 is an apocalyptic number.

It is an amenable number.

87740156 is an abundant number, since it is smaller than the sum of its proper divisors (88288900).

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

87740156 is a wasteful number, since it uses less digits than its factorization.

87740156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9809 (or 9807 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 87740156 is about 9366.9715490120. The cubic root of 87740156 is about 444.3577926532.

The spelling of 87740156 in words is "eighty-seven million, seven hundred forty thousand, one hundred fifty-six".