97393949 has 2 divisors, whose sum is σ = 97393950. Its totient is φ = 97393948.

The previous prime is 97393931. The next prime is 97393957. The reversal of 97393949 is 94939379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85192900 + 12201049 = 9230^2 + 3493^2 .

It is an emirp because it is prime and its reverse (94939379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97393949 - 2²⁴ = 80616733 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97393949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97393979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48696974 + 48696975.

It is an arithmetic number, because the mean of its divisors is an integer number (48696975).

Almost surely, 2^97393949 is an apocalyptic number.

It is an amenable number.

97393949 is a deficient number, since it is larger than the sum of its proper divisors (1).

97393949 is an equidigital number, since it uses as much as digits as its factorization.

97393949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 53.

The square root of 97393949 is about 9868.8372668719. The cubic root of 97393949 is about 460.0912689096.

The spelling of 97393949 in words is "ninety-seven million, three hundred ninety-three thousand, nine hundred forty-nine".