97970417 has 2 divisors, whose sum is σ = 97970418. Its totient is φ = 97970416.

The previous prime is 97970387. The next prime is 97970429. The reversal of 97970417 is 71407979.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97930816 + 39601 = 9896^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 97970417 - 2²² = 93776113 is a prime.

It is not a weakly prime, because it can be changed into another prime (97970437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48985208 + 48985209.

It is an arithmetic number, because the mean of its divisors is an integer number (48985209).

Almost surely, 2^97970417 is an apocalyptic number.

It is an amenable number.

97970417 is a deficient number, since it is larger than the sum of its proper divisors (1).

97970417 is an equidigital number, since it uses as much as digits as its factorization.

97970417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 97970417 is about 9898.0006566983. Note that the first 3 decimals coincide. The cubic root of 97970417 is about 460.9972331980.

The spelling of 97970417 in words is "ninety-seven million, nine hundred seventy thousand, four hundred seventeen".