87127390 has 24 divisors (see below), whose sum is σ = 182435112. Its totient is φ = 29872080.

The previous prime is 87127379. The next prime is 87127409. The reversal of 87127390 is 9372178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88416 + ... + 89395.

It is an arithmetic number, because the mean of its divisors is an integer number (7601463).

Almost surely, 2^87127390 is an apocalyptic number.

87127390 is an abundant number, since it is smaller than the sum of its proper divisors (95307722).

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

87127390 is a wasteful number, since it uses less digits than its factorization.

87127390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177832 (or 177825 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 87127390 is about 9334.2053759278. The cubic root of 87127390 is about 443.3209291697.

The spelling of 87127390 in words is "eighty-seven million, one hundred twenty-seven thousand, three hundred ninety".