79321445 has 18 divisors (see below), whose sum is σ = 110921202. Its totient is φ = 54296256.

The previous prime is 79321423. The next prime is 79321469. The reversal of 79321445 is 54412397.

It can be written as a sum of positive squares in 3 ways, for example, as 164836 + 79156609 = 406^2 + 8897^2 .

It is not a de Polignac number, because 79321445 - 2⁶ = 79321381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 139121 + ... + 139689.

It is an arithmetic number, because the mean of its divisors is an integer number (6162289).

Almost surely, 2^79321445 is an apocalyptic number.

It is an amenable number.

79321445 is a deficient number, since it is larger than the sum of its proper divisors (31599757).

79321445 is an frugal number, since it uses more digits than its factorization.

79321445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 581 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 79321445 is about 8906.2587543817. The cubic root of 79321445 is about 429.6652252784.

The spelling of 79321445 in words is "seventy-nine million, three hundred twenty-one thousand, four hundred forty-five".