87162877 has 4 divisors (see below), whose sum is σ = 87195676. Its totient is φ = 87130080.

The previous prime is 87162857. The next prime is 87162919. The reversal of 87162877 is 77826178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77826178 = 2 ⋅38913089.

It can be written as a sum of positive squares in 2 ways, for example, as 56460196 + 30702681 = 7514^2 + 5541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87162877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87162857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12024 + ... + 17857.

It is an arithmetic number, because the mean of its divisors is an integer number (21798919).

Almost surely, 2^87162877 is an apocalyptic number.

It is an amenable number.

87162877 is a deficient number, since it is larger than the sum of its proper divisors (32799).

87162877 is a wasteful number, since it uses less digits than its factorization.

87162877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32798.

The product of its digits is 263424, while the sum is 46.

The square root of 87162877 is about 9336.1060940844. The cubic root of 87162877 is about 443.3811092287.

The spelling of 87162877 in words is "eighty-seven million, one hundred sixty-two thousand, eight hundred seventy-seven".