84510697 has 2 divisors, whose sum is σ = 84510698. Its totient is φ = 84510696.

The previous prime is 84510691. The next prime is 84510709. The reversal of 84510697 is 79601548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82011136 + 2499561 = 9056^2 + 1581^2 .

It is a cyclic number.

It is not a de Polignac number, because 84510697 - 2²³ = 76122089 is a prime.

It is not a weakly prime, because it can be changed into another prime (84510691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42255348 + 42255349.

It is an arithmetic number, because the mean of its divisors is an integer number (42255349).

Almost surely, 2^84510697 is an apocalyptic number.

It is an amenable number.

84510697 is a deficient number, since it is larger than the sum of its proper divisors (1).

84510697 is an equidigital number, since it uses as much as digits as its factorization.

84510697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 84510697 is about 9192.9699771075. The cubic root of 84510697 is about 438.8376639415.

The spelling of 84510697 in words is "eighty-four million, five hundred ten thousand, six hundred ninety-seven".