97172983 has 2 divisors, whose sum is σ = 97172984. Its totient is φ = 97172982.

The previous prime is 97172963. The next prime is 97172987. The reversal of 97172983 is 38927179.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97172983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97172987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48586491 + 48586492.

It is an arithmetic number, because the mean of its divisors is an integer number (48586492).

Almost surely, 2^97172983 is an apocalyptic number.

97172983 is a deficient number, since it is larger than the sum of its proper divisors (1).

97172983 is an equidigital number, since it uses as much as digits as its factorization.

97172983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 97172983 is about 9857.6357713196. The cubic root of 97172983 is about 459.7430559373.

The spelling of 97172983 in words is "ninety-seven million, one hundred seventy-two thousand, nine hundred eighty-three".