87630278 has 16 divisors (see below), whose sum is σ = 134521344. Its totient is φ = 42793800.

The previous prime is 87630271. The next prime is 87630287. The reversal of 87630278 is 87203678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87630271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82853 + ... + 83903.

It is an arithmetic number, because the mean of its divisors is an integer number (8407584).

Almost surely, 2^87630278 is an apocalyptic number.

87630278 is a deficient number, since it is larger than the sum of its proper divisors (46891066).

87630278 is a wasteful number, since it uses less digits than its factorization.

87630278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 87630278 is about 9361.1045288470. The cubic root of 87630278 is about 444.1722237211.

The spelling of 87630278 in words is "eighty-seven million, six hundred thirty thousand, two hundred seventy-eight".