79334891 has 2 divisors, whose sum is σ = 79334892. Its totient is φ = 79334890.

The previous prime is 79334863. The next prime is 79334897. The reversal of 79334891 is 19843397.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79334891 - 2¹⁴ = 79318507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79334897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39667445 + 39667446.

It is an arithmetic number, because the mean of its divisors is an integer number (39667446).

Almost surely, 2^79334891 is an apocalyptic number.

79334891 is a deficient number, since it is larger than the sum of its proper divisors (1).

79334891 is an equidigital number, since it uses as much as digits as its factorization.

79334891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 79334891 is about 8907.0135848106. The cubic root of 79334891 is about 429.6895018247.

The spelling of 79334891 in words is "seventy-nine million, three hundred thirty-four thousand, eight hundred ninety-one".