99275993 has 2 divisors, whose sum is σ = 99275994. Its totient is φ = 99275992.

The previous prime is 99275987. The next prime is 99276013. The reversal of 99275993 is 39957299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 33779344 = 8093^2 + 5812^2 .

It is a cyclic number.

It is not a de Polignac number, because 99275993 - 2⁶ = 99275929 is a prime.

It is a super-2 number, since 2×99275993² = 19711445572272098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99275093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49637996 + 49637997.

It is an arithmetic number, because the mean of its divisors is an integer number (49637997).

Almost surely, 2^99275993 is an apocalyptic number.

It is an amenable number.

99275993 is a deficient number, since it is larger than the sum of its proper divisors (1).

99275993 is an equidigital number, since it uses as much as digits as its factorization.

99275993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1377810, while the sum is 53.

The square root of 99275993 is about 9963.7338884577. The cubic root of 99275993 is about 463.0359881031.

The spelling of 99275993 in words is "ninety-nine million, two hundred seventy-five thousand, nine hundred ninety-three".