79480845 has 30 divisors (see below), whose sum is σ = 142799118. Its totient is φ = 42294096.

The previous prime is 79480829. The next prime is 79480853. The reversal of 79480845 is 54808497.

It can be written as a sum of positive squares in only one way, i.e., 63584676 + 15896169 = 7974^2 + 3987^2 .

It is not a de Polignac number, because 79480845 - 2⁴ = 79480829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 79480845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 179194 + ... + 179636.

Almost surely, 2^79480845 is an apocalyptic number.

It is an amenable number.

79480845 is a deficient number, since it is larger than the sum of its proper divisors (63318273).

79480845 is an frugal number, since it uses more digits than its factorization.

79480845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 79480845 is about 8915.2030262917. The cubic root of 79480845 is about 429.9528432152.

Multiplying 79480845 by its sum of digits (45), we get a square (3576638025 = 59805²).

79480845 divided by its sum of digits (45) gives a square (1766241 = 1329²).

The spelling of 79480845 in words is "seventy-nine million, four hundred eighty thousand, eight hundred forty-five".