84910897 has 2 divisors, whose sum is σ = 84910898. Its totient is φ = 84910896.

The previous prime is 84910883. The next prime is 84910913. The reversal of 84910897 is 79801948.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71250481 + 13660416 = 8441^2 + 3696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84910897 is a prime.

It is not a weakly prime, because it can be changed into another prime (84910697) 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, 42455448 + 42455449.

It is an arithmetic number, because the mean of its divisors is an integer number (42455449).

Almost surely, 2^84910897 is an apocalyptic number.

It is an amenable number.

84910897 is a deficient number, since it is larger than the sum of its proper divisors (1).

84910897 is an equidigital number, since it uses as much as digits as its factorization.

84910897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 84910897 is about 9214.7109015964. The cubic root of 84910897 is about 439.5292779264.

The spelling of 84910897 in words is "eighty-four million, nine hundred ten thousand, eight hundred ninety-seven".