84179497 has 2 divisors, whose sum is σ = 84179498. Its totient is φ = 84179496.

The previous prime is 84179453. The next prime is 84179521. The reversal of 84179497 is 79497148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62473216 + 21706281 = 7904^2 + 4659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84179497 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84179497.

It is not a weakly prime, because it can be changed into another prime (84177497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42089748 + 42089749.

It is an arithmetic number, because the mean of its divisors is an integer number (42089749).

Almost surely, 2^84179497 is an apocalyptic number.

It is an amenable number.

84179497 is a deficient number, since it is larger than the sum of its proper divisors (1).

84179497 is an equidigital number, since it uses as much as digits as its factorization.

84179497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 84179497 is about 9174.9385284044. The cubic root of 84179497 is about 438.2636406842.

The spelling of 84179497 in words is "eighty-four million, one hundred seventy-nine thousand, four hundred ninety-seven".