77330913 has 8 divisors (see below), whose sum is σ = 112481376. Its totient is φ = 46867200.

The previous prime is 77330873. The next prime is 77330923. The reversal of 77330913 is 31903377.

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

It is not a de Polignac number, because 77330913 - 2²¹ = 75233761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2343361 = 77330913 / (7 + 7 + 3 + 3 + 0 + 9 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (77330923) 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, 1171648 + ... + 1171713.

It is an arithmetic number, because the mean of its divisors is an integer number (14060172).

Almost surely, 2^77330913 is an apocalyptic number.

It is an amenable number.

77330913 is a deficient number, since it is larger than the sum of its proper divisors (35150463).

77330913 is a wasteful number, since it uses less digits than its factorization.

77330913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343375.

The product of its (nonzero) digits is 11907, while the sum is 33.

The square root of 77330913 is about 8793.7996906912. The cubic root of 77330913 is about 426.0406571436.

The spelling of 77330913 in words is "seventy-seven million, three hundred thirty thousand, nine hundred thirteen".