97686793 has 2 divisors, whose sum is σ = 97686794. Its totient is φ = 97686792.

The previous prime is 97686769. The next prime is 97686833. The reversal of 97686793 is 39768679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90859024 + 6827769 = 9532^2 + 2613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97686793 is a prime.

It is not a weakly prime, because it can be changed into another prime (97686763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48843396 + 48843397.

It is an arithmetic number, because the mean of its divisors is an integer number (48843397).

Almost surely, 2^97686793 is an apocalyptic number.

It is an amenable number.

97686793 is a deficient number, since it is larger than the sum of its proper divisors (1).

97686793 is an equidigital number, since it uses as much as digits as its factorization.

97686793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 97686793 is about 9883.6629343579. The cubic root of 97686793 is about 460.5519414454.

It can be divided in two parts, 9768 and 6793, that added together give a palindrome (16561).

The spelling of 97686793 in words is "ninety-seven million, six hundred eighty-six thousand, seven hundred ninety-three".