79745453 has 8 divisors (see below), whose sum is σ = 84684600. Its totient is φ = 74833920.

The previous prime is 79745441. The next prime is 79745473. The reversal of 79745453 is 35454797.

It can be written as a sum of positive squares in 4 ways, for example, as 15697444 + 64048009 = 3962^2 + 8003^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 79745453 - 2⁴ = 79745437 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 (79745473) 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, 788 + ... + 12653.

It is an arithmetic number, because the mean of its divisors is an integer number (10585575).

Almost surely, 2^79745453 is an apocalyptic number.

It is an amenable number.

79745453 is a deficient number, since it is larger than the sum of its proper divisors (4939147).

79745453 is a wasteful number, since it uses less digits than its factorization.

79745453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13807.

The product of its digits is 529200, while the sum is 44.

The square root of 79745453 is about 8930.0309629922. The cubic root of 79745453 is about 430.4294483710.

The spelling of 79745453 in words is "seventy-nine million, seven hundred forty-five thousand, four hundred fifty-three".