767616013 has 4 divisors (see below), whose sum is σ = 782099388. Its totient is φ = 753132640.

The previous prime is 767615987. The next prime is 767616037. The reversal of 767616013 is 310616767.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 610188804 + 157427209 = 24702^2 + 12547^2 .

It is a cyclic number.

It is not a de Polignac number, because 767616013 - 2²¹ = 765518861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (767616413) 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 3 ways as a sum of consecutive naturals, for example, 7241608 + ... + 7241713.

It is an arithmetic number, because the mean of its divisors is an integer number (195524847).

Almost surely, 2^767616013 is an apocalyptic number.

It is an amenable number.

767616013 is a deficient number, since it is larger than the sum of its proper divisors (14483375).

767616013 is a wasteful number, since it uses less digits than its factorization.

767616013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14483374.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 767616013 is about 27705.8840862370. The cubic root of 767616013 is about 915.6187452007.

The spelling of 767616013 in words is "seven hundred sixty-seven million, six hundred sixteen thousand, thirteen".