87740877 has 32 divisors (see below), whose sum is σ = 137410560. Its totient is φ = 48767040.

The previous prime is 87740867. The next prime is 87740897. The reversal of 87740877 is 77804778.

It is not a de Polignac number, because 87740877 - 2⁶ = 87740813 is a prime.

It is a super-2 number, since 2×87740877² = 15396922993458258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87740867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123399 + ... + 124107.

It is an arithmetic number, because the mean of its divisors is an integer number (4294080).

Almost surely, 2^87740877 is an apocalyptic number.

It is an amenable number.

87740877 is a deficient number, since it is larger than the sum of its proper divisors (49669683).

87740877 is a wasteful number, since it uses less digits than its factorization.

87740877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its (nonzero) digits is 614656, while the sum is 48.

The square root of 87740877 is about 9367.0100352247. The cubic root of 87740877 is about 444.3590098119.

The spelling of 87740877 in words is "eighty-seven million, seven hundred forty thousand, eight hundred seventy-seven".