77927340 has 24 divisors (see below), whose sum is σ = 218196720. Its totient is φ = 20780608.

The previous prime is 77927323. The next prime is 77927357. The reversal of 77927340 is 4372977.

It is an interprime number because it is at equal distance from previous prime (77927323) and next prime (77927357).

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, 649335 + ... + 649454.

It is an arithmetic number, because the mean of its divisors is an integer number (9091530).

Almost surely, 2^77927340 is an apocalyptic number.

It is an amenable number.

77927340 is an abundant number, since it is smaller than the sum of its proper divisors (140269380).

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

77927340 is a wasteful number, since it uses less digits than its factorization.

77927340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298801 (or 1298799 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 77927340 is about 8827.6463454309. The cubic root of 77927340 is about 427.1331554224.

The spelling of 77927340 in words is "seventy-seven million, nine hundred twenty-seven thousand, three hundred forty".