87880790 has 8 divisors (see below), whose sum is σ = 158185440. Its totient is φ = 35152312.

The previous prime is 87880729. The next prime is 87880801. The reversal of 87880790 is 9708878.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4394030 + ... + 4394049.

It is an arithmetic number, because the mean of its divisors is an integer number (19773180).

Almost surely, 2^87880790 is an apocalyptic number.

87880790 is a deficient number, since it is larger than the sum of its proper divisors (70304650).

87880790 is a wasteful number, since it uses less digits than its factorization.

87880790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788086.

The product of its (nonzero) digits is 225792, while the sum is 47.

The square root of 87880790 is about 9374.4754519920. The cubic root of 87880790 is about 444.5950783617.

The spelling of 87880790 in words is "eighty-seven million, eight hundred eighty thousand, seven hundred ninety".