99407293 has 2 divisors, whose sum is σ = 99407294. Its totient is φ = 99407292.

The previous prime is 99407281. The next prime is 99407299. The reversal of 99407293 is 39270499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99261369 + 145924 = 9963^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 99407293 - 2⁹ = 99406781 is a prime.

It is a super-3 number, since 3×99407293³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99407299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49703646 + 49703647.

It is an arithmetic number, because the mean of its divisors is an integer number (49703647).

Almost surely, 2^99407293 is an apocalyptic number.

It is an amenable number.

99407293 is a deficient number, since it is larger than the sum of its proper divisors (1).

99407293 is an equidigital number, since it uses as much as digits as its factorization.

99407293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 99407293 is about 9970.3206066806. The cubic root of 99407293 is about 463.2400315325.

The spelling of 99407293 in words is "ninety-nine million, four hundred seven thousand, two hundred ninety-three".