79158745 has 8 divisors (see below), whose sum is σ = 95540616. Its totient is φ = 62960256.

The previous prime is 79158727. The next prime is 79158773. The reversal of 79158745 is 54785197.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6210064 + 72948681 = 2492^2 + 8541^2 .

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 79158745 - 2¹³ = 79150553 is a prime.

It is a super-2 number, since 2×79158745² = 12532213819950050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79158695 and 79158704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44892 + ... + 46621.

It is an arithmetic number, because the mean of its divisors is an integer number (11942577).

Almost surely, 2^79158745 is an apocalyptic number.

It is an amenable number.

79158745 is a deficient number, since it is larger than the sum of its proper divisors (16381871).

79158745 is a wasteful number, since it uses less digits than its factorization.

79158745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91691.

The product of its digits is 352800, while the sum is 46.

The square root of 79158745 is about 8897.1200396533. The cubic root of 79158745 is about 429.3712552475.

It can be divided in two parts, 791 and 58745, that added together give a square (59536 = 244²).

The spelling of 79158745 in words is "seventy-nine million, one hundred fifty-eight thousand, seven hundred forty-five".