87277280 has 24 divisors (see below), whose sum is σ = 206192952. Its totient is φ = 34910848.

The previous prime is 87277277. The next prime is 87277283. The reversal of 87277280 is 8277278.

It is an interprime number because it is at equal distance from previous prime (87277277) and next prime (87277283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87277283) 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, 272582 + ... + 272901.

It is an arithmetic number, because the mean of its divisors is an integer number (8591373).

Almost surely, 2^87277280 is an apocalyptic number.

87277280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87277280 is an abundant number, since it is smaller than the sum of its proper divisors (118915672).

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

87277280 is a wasteful number, since it uses less digits than its factorization.

87277280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545498 (or 545490 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 87277280 is about 9342.2309969300. The cubic root of 87277280 is about 443.5750065804.

The spelling of 87277280 in words is "eighty-seven million, two hundred seventy-seven thousand, two hundred eighty".