87375540 has 48 divisors (see below), whose sum is σ = 279603072. Its totient is φ = 19971456.

The previous prime is 87375523. The next prime is 87375581. The reversal of 87375540 is 4557378.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103599 + ... + 104438.

It is an arithmetic number, because the mean of its divisors is an integer number (5825064).

Almost surely, 2^87375540 is an apocalyptic number.

It is an amenable number.

87375540 is an abundant number, since it is smaller than the sum of its proper divisors (192227532).

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

87375540 is a wasteful number, since it uses less digits than its factorization.

87375540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208056 (or 208054 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 87375540 is about 9347.4884327289. The cubic root of 87375540 is about 443.7414085489.

The spelling of 87375540 in words is "eighty-seven million, three hundred seventy-five thousand, five hundred forty".