79234847 has 2 divisors, whose sum is σ = 79234848. Its totient is φ = 79234846.

The previous prime is 79234843. The next prime is 79234861. The reversal of 79234847 is 74843297.

It is a weak prime.

It is an emirp because it is prime and its reverse (74843297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79234847 - 2² = 79234843 is a prime.

It is a super-2 number, since 2×79234847² = 12556321958226818, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 79234798 and 79234807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79234843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39617423 + 39617424.

It is an arithmetic number, because the mean of its divisors is an integer number (39617424).

Almost surely, 2^79234847 is an apocalyptic number.

79234847 is a deficient number, since it is larger than the sum of its proper divisors (1).

79234847 is an equidigital number, since it uses as much as digits as its factorization.

79234847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The square root of 79234847 is about 8901.3957894254. The cubic root of 79234847 is about 429.5088081502.

The spelling of 79234847 in words is "seventy-nine million, two hundred thirty-four thousand, eight hundred forty-seven".