97928437 has 2 divisors, whose sum is σ = 97928438. Its totient is φ = 97928436.

The previous prime is 97928431. The next prime is 97928461. The reversal of 97928437 is 73482979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73977201 + 23951236 = 8601^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 97928437 - 2³ = 97928429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97928431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48964218 + 48964219.

It is an arithmetic number, because the mean of its divisors is an integer number (48964219).

Almost surely, 2^97928437 is an apocalyptic number.

It is an amenable number.

97928437 is a deficient number, since it is larger than the sum of its proper divisors (1).

97928437 is an equidigital number, since it uses as much as digits as its factorization.

97928437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 97928437 is about 9895.8797991892. The cubic root of 97928437 is about 460.9313785272.

The spelling of 97928437 in words is "ninety-seven million, nine hundred twenty-eight thousand, four hundred thirty-seven".