77384913 has 8 divisors (see below), whose sum is σ = 103365408. Its totient is φ = 51497184.

The previous prime is 77384893. The next prime is 77384927. The reversal of 77384913 is 31948377.

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

It is not a de Polignac number, because 77384913 - 2¹⁸ = 77122769 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77384953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21220 + ... + 24597.

It is an arithmetic number, because the mean of its divisors is an integer number (12920676).

Almost surely, 2^77384913 is an apocalyptic number.

It is an amenable number.

77384913 is a deficient number, since it is larger than the sum of its proper divisors (25980495).

77384913 is a wasteful number, since it uses less digits than its factorization.

77384913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46383.

The product of its digits is 127008, while the sum is 42.

The square root of 77384913 is about 8796.8694999983. The cubic root of 77384913 is about 426.1398018091.

The spelling of 77384913 in words is "seventy-seven million, three hundred eighty-four thousand, nine hundred thirteen".