10646431 has 2 divisors, whose sum is σ = 10646432. Its totient is φ = 10646430.

The previous prime is 10646387. The next prime is 10646443. The reversal of 10646431 is 13464601.

It is a strong prime.

It is an emirp because it is prime and its reverse (13464601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10646431 - 2⁹ = 10645919 is a prime.

It is a super-2 number, since 2×10646431² = 226692986075522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10646396 and 10646405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10646231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5323215 + 5323216.

It is an arithmetic number, because the mean of its divisors is an integer number (5323216).

Almost surely, 2^10646431 is an apocalyptic number.

10646431 is a deficient number, since it is larger than the sum of its proper divisors (1).

10646431 is an equidigital number, since it uses as much as digits as its factorization.

10646431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 10646431 is about 3262.8869119232. The cubic root of 10646431 is about 219.9891936841.

The spelling of 10646431 in words is "ten million, six hundred forty-six thousand, four hundred thirty-one".