97057949 has 2 divisors, whose sum is σ = 97057950. Its totient is φ = 97057948.

The previous prime is 97057943. The next prime is 97057967. The reversal of 97057949 is 94975079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81902500 + 15155449 = 9050^2 + 3893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97057949 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 97057897 and 97057906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97057943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48528974 + 48528975.

It is an arithmetic number, because the mean of its divisors is an integer number (48528975).

Almost surely, 2^97057949 is an apocalyptic number.

It is an amenable number.

97057949 is a deficient number, since it is larger than the sum of its proper divisors (1).

97057949 is an equidigital number, since it uses as much as digits as its factorization.

97057949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 97057949 is about 9851.7992772894. The cubic root of 97057949 is about 459.5615687113.

The spelling of 97057949 in words is "ninety-seven million, fifty-seven thousand, nine hundred forty-nine".