79643323 has 2 divisors, whose sum is σ = 79643324. Its totient is φ = 79643322.

The previous prime is 79643321. The next prime is 79643329. The reversal of 79643323 is 32334697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79643323 - 2¹ = 79643321 is a prime.

Together with 79643321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79643321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39821661 + 39821662.

It is an arithmetic number, because the mean of its divisors is an integer number (39821662).

Almost surely, 2^79643323 is an apocalyptic number.

79643323 is a deficient number, since it is larger than the sum of its proper divisors (1).

79643323 is an equidigital number, since it uses as much as digits as its factorization.

79643323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 37.

The square root of 79643323 is about 8924.3107857134. The cubic root of 79643323 is about 430.2456195436.

The spelling of 79643323 in words is "seventy-nine million, six hundred forty-three thousand, three hundred twenty-three".