77073320 has 16 divisors (see below), whose sum is σ = 173415060. Its totient is φ = 30829312.

The previous prime is 77073313. The next prime is 77073343. The reversal of 77073320 is 2337077.

It can be written as a sum of positive squares in 2 ways, for example, as 69923044 + 7150276 = 8362^2 + 2674^2 .

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, 963377 + ... + 963456.

Almost surely, 2^77073320 is an apocalyptic number.

It is an amenable number.

77073320 is an abundant number, since it is smaller than the sum of its proper divisors (96341740).

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

77073320 is a wasteful number, since it uses less digits than its factorization.

77073320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926844 (or 1926840 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 29.

The square root of 77073320 is about 8779.1411880662. The cubic root of 77073320 is about 425.5670769235.

The spelling of 77073320 in words is "seventy-seven million, seventy-three thousand, three hundred twenty".