84797953 has 2 divisors, whose sum is σ = 84797954. Its totient is φ = 84797952.

The previous prime is 84797939. The next prime is 84797971. The reversal of 84797953 is 35979748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67765824 + 17032129 = 8232^2 + 4127^2 .

It is a cyclic number.

It is not a de Polignac number, because 84797953 - 2⁹ = 84797441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84797953.

It is not a weakly prime, because it can be changed into another prime (84797983) 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, 42398976 + 42398977.

It is an arithmetic number, because the mean of its divisors is an integer number (42398977).

Almost surely, 2^84797953 is an apocalyptic number.

It is an amenable number.

84797953 is a deficient number, since it is larger than the sum of its proper divisors (1).

84797953 is an equidigital number, since it uses as much as digits as its factorization.

84797953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 52.

The square root of 84797953 is about 9208.5804009087. The cubic root of 84797953 is about 439.3343118962.

The spelling of 84797953 in words is "eighty-four million, seven hundred ninety-seven thousand, nine hundred fifty-three".