97499993 has 2 divisors, whose sum is σ = 97499994. Its totient is φ = 97499992.

The previous prime is 97499989. The next prime is 97499999. The reversal of 97499993 is 39999479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93161104 + 4338889 = 9652^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 97499993 - 2² = 97499989 is a prime.

It is not a weakly prime, because it can be changed into another prime (97499999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48749996 + 48749997.

It is an arithmetic number, because the mean of its divisors is an integer number (48749997).

Almost surely, 2^97499993 is an apocalyptic number.

It is an amenable number.

97499993 is a deficient number, since it is larger than the sum of its proper divisors (1).

97499993 is an equidigital number, since it uses as much as digits as its factorization.

97499993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4960116, while the sum is 59.

The square root of 97499993 is about 9874.2084746070. The cubic root of 97499993 is about 460.2581931111.

The spelling of 97499993 in words is "ninety-seven million, four hundred ninety-nine thousand, nine hundred ninety-three".