79845273 has 6 divisors (see below), whose sum is σ = 115332074. Its totient is φ = 53230176.

The previous prime is 79845257. The next prime is 79845287. The reversal of 79845273 is 37254897.

It can be written as a sum of positive squares in only one way, i.e., 74701449 + 5143824 = 8643^2 + 2268^2 .

It is not a de Polignac number, because 79845273 - 2⁴ = 79845257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79841273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4435840 + ... + 4435857.

Almost surely, 2^79845273 is an apocalyptic number.

It is an amenable number.

79845273 is a deficient number, since it is larger than the sum of its proper divisors (35486801).

79845273 is a wasteful number, since it uses less digits than its factorization.

79845273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8871703 (or 8871700 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 79845273 is about 8935.6182214775. The cubic root of 79845273 is about 430.6089677094.

It can be divided in two parts, 7984527 and 3, that multiplied together give a triangular number (23953581 = T₆₉₂₁).

The spelling of 79845273 in words is "seventy-nine million, eight hundred forty-five thousand, two hundred seventy-three".