431407099 has 2 divisors, whose sum is σ = 431407100. Its totient is φ = 431407098.

The previous prime is 431407073. The next prime is 431407117. The reversal of 431407099 is 990704134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431407099 - 2⁹ = 431406587 is a prime.

It is a super-2 number, since 2×431407099² = 372224170135191602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431407019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215703549 + 215703550.

It is an arithmetic number, because the mean of its divisors is an integer number (215703550).

Almost surely, 2^431407099 is an apocalyptic number.

431407099 is a deficient number, since it is larger than the sum of its proper divisors (1).

431407099 is an equidigital number, since it uses as much as digits as its factorization.

431407099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 431407099 is about 20770.3418123054. The cubic root of 431407099 is about 755.6066343552.

The spelling of 431407099 in words is "four hundred thirty-one million, four hundred seven thousand, ninety-nine".