84325979 has 2 divisors, whose sum is σ = 84325980. Its totient is φ = 84325978.

The previous prime is 84325961. The next prime is 84325991. The reversal of 84325979 is 97952348.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84325979 - 2¹⁶ = 84260443 is a prime.

It is a super-2 number, since 2×84325979² = 14221741468616882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84325679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42162989 + 42162990.

It is an arithmetic number, because the mean of its divisors is an integer number (42162990).

Almost surely, 2^84325979 is an apocalyptic number.

84325979 is a deficient number, since it is larger than the sum of its proper divisors (1).

84325979 is an equidigital number, since it uses as much as digits as its factorization.

84325979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 84325979 is about 9182.9177824916. The cubic root of 84325979 is about 438.5177030775.

The spelling of 84325979 in words is "eighty-four million, three hundred twenty-five thousand, nine hundred seventy-nine".