79620513 has 8 divisors (see below), whose sum is σ = 121326528. Its totient is φ = 45497424.

The previous prime is 79620487. The next prime is 79620517. The reversal of 79620513 is 31502697.

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

It is not a de Polignac number, because 79620513 - 2⁵ = 79620481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79620517) 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, 1895706 + ... + 1895747.

It is an arithmetic number, because the mean of its divisors is an integer number (15165816).

Almost surely, 2^79620513 is an apocalyptic number.

It is an amenable number.

79620513 is a deficient number, since it is larger than the sum of its proper divisors (41706015).

79620513 is a wasteful number, since it uses less digits than its factorization.

79620513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791463.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 79620513 is about 8923.0327243600. The cubic root of 79620513 is about 430.2045412323.

The spelling of 79620513 in words is "seventy-nine million, six hundred twenty thousand, five hundred thirteen".