84057079 has 2 divisors, whose sum is σ = 84057080. Its totient is φ = 84057078.

The previous prime is 84057073. The next prime is 84057101. The reversal of 84057079 is 97075048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84057079 - 2⁵ = 84057047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84057073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42028539 + 42028540.

It is an arithmetic number, because the mean of its divisors is an integer number (42028540).

Almost surely, 2^84057079 is an apocalyptic number.

84057079 is a deficient number, since it is larger than the sum of its proper divisors (1).

84057079 is an equidigital number, since it uses as much as digits as its factorization.

84057079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 84057079 is about 9168.2647758450. The cubic root of 84057079 is about 438.0510893750.

The spelling of 84057079 in words is "eighty-four million, fifty-seven thousand, seventy-nine".