87158937 has 8 divisors (see below), whose sum is σ = 121264704. Its totient is φ = 55579568.

The previous prime is 87158933. The next prime is 87158941. The reversal of 87158937 is 73985178.

It is an interprime number because it is at equal distance from previous prime (87158933) and next prime (87158941).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87158937 - 2² = 87158933 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87158933) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 631518 + ... + 631655.

It is an arithmetic number, because the mean of its divisors is an integer number (15158088).

Almost surely, 2^87158937 is an apocalyptic number.

It is an amenable number.

87158937 is a deficient number, since it is larger than the sum of its proper divisors (34105767).

87158937 is a wasteful number, since it uses less digits than its factorization.

87158937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263199.

The product of its digits is 423360, while the sum is 48.

The square root of 87158937 is about 9335.8950829580. The cubic root of 87158937 is about 443.3744284491.

The spelling of 87158937 in words is "eighty-seven million, one hundred fifty-eight thousand, nine hundred thirty-seven".