10398431 has 2 divisors, whose sum is σ = 10398432. Its totient is φ = 10398430.

The previous prime is 10398419. The next prime is 10398433. The reversal of 10398431 is 13489301.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10398431 is a prime.

It is a super-2 number, since 2×10398431² = 216254734523522, which contains 22 as substring.

Together with 10398433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10398394 and 10398403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10398433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5199215 + 5199216.

It is an arithmetic number, because the mean of its divisors is an integer number (5199216).

Almost surely, 2^10398431 is an apocalyptic number.

10398431 is a deficient number, since it is larger than the sum of its proper divisors (1).

10398431 is an equidigital number, since it uses as much as digits as its factorization.

10398431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 10398431 is about 3224.6598270205. The cubic root of 10398431 is about 218.2675991664.

The spelling of 10398431 in words is "ten million, three hundred ninety-eight thousand, four hundred thirty-one".