87872278 has 16 divisors (see below), whose sum is σ = 142349760. Its totient is φ = 40441536.

The previous prime is 87872249. The next prime is 87872293. The reversal of 87872278 is 87227878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 14146.

It is an arithmetic number, because the mean of its divisors is an integer number (8896860).

Almost surely, 2^87872278 is an apocalyptic number.

87872278 is a deficient number, since it is larger than the sum of its proper divisors (54477482).

87872278 is a wasteful number, since it uses less digits than its factorization.

87872278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9591.

The product of its digits is 702464, while the sum is 49.

The square root of 87872278 is about 9374.0214422627. The cubic root of 87872278 is about 444.5807236300.

The spelling of 87872278 in words is "eighty-seven million, eight hundred seventy-two thousand, two hundred seventy-eight".