76530613 has 4 divisors (see below), whose sum is σ = 80558560. Its totient is φ = 72502668.

The previous prime is 76530551. The next prime is 76530673. The reversal of 76530613 is 31603567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76530613 - 2¹⁷ = 76399541 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 (76530673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2013945 + ... + 2013982.

It is an arithmetic number, because the mean of its divisors is an integer number (20139640).

Almost surely, 2^76530613 is an apocalyptic number.

It is an amenable number.

76530613 is a deficient number, since it is larger than the sum of its proper divisors (4027947).

76530613 is a wasteful number, since it uses less digits than its factorization.

76530613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027946.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 76530613 is about 8748.1776959547. The cubic root of 76530613 is about 424.5658551651.

The spelling of 76530613 in words is "seventy-six million, five hundred thirty thousand, six hundred thirteen".