79445 has 4 divisors (see below), whose sum is σ = 95340. Its totient is φ = 63552.

The previous prime is 79433. The next prime is 79451. The reversal of 79445 is 54497.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22801 + 56644 = 151^2 + 238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79445 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 79445.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (23835).

2⁷⁹⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

79445 is a deficient number, since it is larger than the sum of its proper divisors (15895).

79445 is a wasteful number, since it uses less digits than its factorization.

79445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15894.

The product of its digits is 5040, while the sum is 29.

The square root of 79445 is about 281.8598942737. The cubic root of 79445 is about 42.9888198805.

The spelling of 79445 in words is "seventy-nine thousand, four hundred forty-five".