97928357 has 2 divisors, whose sum is σ = 97928358. Its totient is φ = 97928356.

The previous prime is 97928351. The next prime is 97928359. The reversal of 97928357 is 75382979.

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., 67996516 + 29931841 = 8246^2 + 5471^2 .

It is a cyclic number.

It is not a de Polignac number, because 97928357 - 2⁶ = 97928293 is a prime.

Together with 97928359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97928351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48964178 + 48964179.

It is an arithmetic number, because the mean of its divisors is an integer number (48964179).

Almost surely, 2^97928357 is an apocalyptic number.

It is an amenable number.

97928357 is a deficient number, since it is larger than the sum of its proper divisors (1).

97928357 is an equidigital number, since it uses as much as digits as its factorization.

97928357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 97928357 is about 9895.8757571020. The cubic root of 97928357 is about 460.9312530120.

The spelling of 97928357 in words is "ninety-seven million, nine hundred twenty-eight thousand, three hundred fifty-seven".