77573740 has 12 divisors (see below), whose sum is σ = 162904896. Its totient is φ = 31029488.

The previous prime is 77573723. The next prime is 77573773. The reversal of 77573740 is 4737577.

It is a junction number, because it is equal to n+sod(n) for n = 77573693 and 77573702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1939324 + ... + 1939363.

It is an arithmetic number, because the mean of its divisors is an integer number (13575408).

Almost surely, 2^77573740 is an apocalyptic number.

It is an amenable number.

77573740 is an abundant number, since it is smaller than the sum of its proper divisors (85331156).

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

77573740 is a wasteful number, since it uses less digits than its factorization.

77573740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878696 (or 3878694 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 77573740 is about 8807.5955856295. The cubic root of 77573740 is about 426.4861283167.

The spelling of 77573740 in words is "seventy-seven million, five hundred seventy-three thousand, seven hundred forty".