79645653 has 8 divisors (see below), whose sum is σ = 117993600. Its totient is φ = 53097084.

The previous prime is 79645651. The next prime is 79645661. The reversal of 79645653 is 35654697.

It is not a de Polignac number, because 79645653 - 2¹ = 79645651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79645599 and 79645608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79645651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474893 + ... + 1474946.

It is an arithmetic number, because the mean of its divisors is an integer number (14749200).

Almost surely, 2^79645653 is an apocalyptic number.

It is an amenable number.

79645653 is a deficient number, since it is larger than the sum of its proper divisors (38347947).

79645653 is a wasteful number, since it uses less digits than its factorization.

79645653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949848 (or 2949842 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 79645653 is about 8924.4413270524. The cubic root of 79645653 is about 430.2498151768.

The spelling of 79645653 in words is "seventy-nine million, six hundred forty-five thousand, six hundred fifty-three".