97897357 has 2 divisors, whose sum is σ = 97897358. Its totient is φ = 97897356.

The previous prime is 97897351. The next prime is 97897391. The reversal of 97897357 is 75379879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 25664356 = 8499^2 + 5066^2 .

It is a cyclic number.

It is not a de Polignac number, because 97897357 - 2⁷ = 97897229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97897298 and 97897307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97897351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48948678 + 48948679.

It is an arithmetic number, because the mean of its divisors is an integer number (48948679).

Almost surely, 2^97897357 is an apocalyptic number.

It is an amenable number.

97897357 is a deficient number, since it is larger than the sum of its proper divisors (1).

97897357 is an equidigital number, since it uses as much as digits as its factorization.

97897357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 55.

The square root of 97897357 is about 9894.3093240509. The cubic root of 97897357 is about 460.8826107280.

The spelling of 97897357 in words is "ninety-seven million, eight hundred ninety-seven thousand, three hundred fifty-seven".