422961431 has 2 divisors, whose sum is σ = 422961432. Its totient is φ = 422961430.

The previous prime is 422961391. The next prime is 422961449. The reversal of 422961431 is 134169224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422961431 is a prime.

It is a super-2 number, since 2×422961431² = 357792744227135522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422966431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211480715 + 211480716.

It is an arithmetic number, because the mean of its divisors is an integer number (211480716).

Almost surely, 2^422961431 is an apocalyptic number.

422961431 is a deficient number, since it is larger than the sum of its proper divisors (1).

422961431 is an equidigital number, since it uses as much as digits as its factorization.

422961431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 422961431 is about 20566.0261353524. The cubic root of 422961431 is about 750.6432590955.

The spelling of 422961431 in words is "four hundred twenty-two million, nine hundred sixty-one thousand, four hundred thirty-one".