81614708 has 24 divisors (see below), whose sum is σ = 163427712. Its totient is φ = 34935264.

The previous prime is 81614699. The next prime is 81614779. The reversal of 81614708 is 80741618.

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, 35366 + ... + 37602.

It is an arithmetic number, because the mean of its divisors is an integer number (6809488).

Almost surely, 2^81614708 is an apocalyptic number.

It is an amenable number.

81614708 is an abundant number, since it is smaller than the sum of its proper divisors (81813004).

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

81614708 is a wasteful number, since it uses less digits than its factorization.

81614708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 81614708 is about 9034.0858973114. The cubic root of 81614708 is about 433.7666353554.

The spelling of 81614708 in words is "eighty-one million, six hundred fourteen thousand, seven hundred eight".