87278 has 12 divisors (see below), whose sum is σ = 139992. Its totient is φ = 40800.

The previous prime is 87277. The next prime is 87281.

It is a happy number.

87278 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (11666).

2⁸⁷²⁷⁸ is an apocalyptic number.

87278 is a deficient number, since it is larger than the sum of its proper divisors (52714).

87278 is a wasteful number, since it uses less digits than its factorization.

87278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 170 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The square root of 87278 is about 295.4285023487. The cubic root of 87278 is about 44.3576226345.

The spelling of 87278 in words is "eighty-seven thousand, two hundred seventy-eight".