77974060 has 24 divisors (see below), whose sum is σ = 163920960. Its totient is φ = 31156224.

The previous prime is 77974051. The next prime is 77974067. The reversal of 77974060 is 6047977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77974067) 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, 26797 + ... + 29563.

It is an arithmetic number, because the mean of its divisors is an integer number (6830040).

Almost surely, 2^77974060 is an apocalyptic number.

It is an amenable number.

77974060 is an abundant number, since it is smaller than the sum of its proper divisors (85946900).

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

77974060 is a wasteful number, since it uses less digits than its factorization.

77974060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 77974060 is about 8830.2921808964. The cubic root of 77974060 is about 427.2184984883.

The spelling of 77974060 in words is "seventy-seven million, nine hundred seventy-four thousand, sixty".