77714972 has 6 divisors (see below), whose sum is σ = 136001208. Its totient is φ = 38857484.

The previous prime is 77714947. The next prime is 77714981. The reversal of 77714972 is 27941777.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9714368 + ... + 9714375.

It is an arithmetic number, because the mean of its divisors is an integer number (22666868).

Almost surely, 2^77714972 is an apocalyptic number.

It is an amenable number.

77714972 is a deficient number, since it is larger than the sum of its proper divisors (58286236).

77714972 is a wasteful number, since it uses less digits than its factorization.

77714972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428747 (or 19428745 counting only the distinct ones).

The product of its digits is 172872, while the sum is 44.

The square root of 77714972 is about 8815.6095648571. The cubic root of 77714972 is about 426.7447939072.

The spelling of 77714972 in words is "seventy-seven million, seven hundred fourteen thousand, nine hundred seventy-two".