87878514 has 16 divisors (see below), whose sum is σ = 176292000. Its totient is φ = 29203680.

The previous prime is 87878509. The next prime is 87878519. The reversal of 87878514 is 41587878.

It is an interprime number because it is at equal distance from previous prime (87878509) and next prime (87878519).

It is not an unprimeable number, because it can be changed into a prime (87878519) 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, 20139 + ... + 24110.

It is an arithmetic number, because the mean of its divisors is an integer number (11018250).

Almost surely, 2^87878514 is an apocalyptic number.

87878514 is an abundant number, since it is smaller than the sum of its proper divisors (88413486).

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

87878514 is a wasteful number, since it uses less digits than its factorization.

87878514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44585.

The product of its digits is 501760, while the sum is 48.

The square root of 87878514 is about 9374.3540577471. The cubic root of 87878514 is about 444.5912401807.

The spelling of 87878514 in words is "eighty-seven million, eight hundred seventy-eight thousand, five hundred fourteen".