77393065 has 8 divisors (see below), whose sum is σ = 93915720. Its totient is φ = 61218432.

The previous prime is 77393059. The next prime is 77393093. The reversal of 77393065 is 56039377.

It can be written as a sum of positive squares in 4 ways, for example, as 1075369 + 76317696 = 1037^2 + 8736^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77393065 - 2⁵ = 77393033 is a prime.

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, 86514 + ... + 87403.

It is an arithmetic number, because the mean of its divisors is an integer number (11739465).

Almost surely, 2^77393065 is an apocalyptic number.

It is an amenable number.

77393065 is a deficient number, since it is larger than the sum of its proper divisors (16522655).

77393065 is a wasteful number, since it uses less digits than its factorization.

77393065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174011.

The product of its (nonzero) digits is 119070, while the sum is 40.

The square root of 77393065 is about 8797.3328344448. The cubic root of 77393065 is about 426.1547649742.

The spelling of 77393065 in words is "seventy-seven million, three hundred ninety-three thousand, sixty-five".