79145747 has 2 divisors, whose sum is σ = 79145748. Its totient is φ = 79145746.

The previous prime is 79145743. The next prime is 79145767. The reversal of 79145747 is 74754197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79145747 - 2² = 79145743 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79145698 and 79145707.

It is not a weakly prime, because it can be changed into another prime (79145743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39572873 + 39572874.

It is an arithmetic number, because the mean of its divisors is an integer number (39572874).

Almost surely, 2^79145747 is an apocalyptic number.

79145747 is a deficient number, since it is larger than the sum of its proper divisors (1).

79145747 is an equidigital number, since it uses as much as digits as its factorization.

79145747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 79145747 is about 8896.3895485753. The cubic root of 79145747 is about 429.3477527987.

The spelling of 79145747 in words is "seventy-nine million, one hundred forty-five thousand, seven hundred forty-seven".