81714968 has 16 divisors (see below), whose sum is σ = 156953160. Its totient is φ = 39860800.

The previous prime is 81714967. The next prime is 81714973. The reversal of 81714968 is 86941718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81714967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124238 + ... + 124893.

Almost surely, 2^81714968 is an apocalyptic number.

It is an amenable number.

81714968 is a deficient number, since it is larger than the sum of its proper divisors (75238192).

81714968 is a wasteful number, since it uses less digits than its factorization.

81714968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249178 (or 249174 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 81714968 is about 9039.6331783983. The cubic root of 81714968 is about 433.9441836095.

The spelling of 81714968 in words is "eighty-one million, seven hundred fourteen thousand, nine hundred sixty-eight".