76620513 has 16 divisors (see below), whose sum is σ = 110811456. Its totient is φ = 46901760.

The previous prime is 76620493. The next prime is 76620517. The reversal of 76620513 is 31502667.

It is not a de Polignac number, because 76620513 - 2⁶ = 76620449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76620517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16231 + ... + 20412.

It is an arithmetic number, because the mean of its divisors is an integer number (6925716).

Almost surely, 2^76620513 is an apocalyptic number.

It is an amenable number.

76620513 is a deficient number, since it is larger than the sum of its proper divisors (34190943).

76620513 is a wasteful number, since it uses less digits than its factorization.

76620513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36704.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 76620513 is about 8753.3144008427. The cubic root of 76620513 is about 424.7320350036.

The spelling of 76620513 in words is "seventy-six million, six hundred twenty thousand, five hundred thirteen".