42964931 has 2 divisors, whose sum is σ = 42964932. Its totient is φ = 42964930.

The previous prime is 42964913. The next prime is 42964937. The reversal of 42964931 is 13946924.

Together with previous prime (42964913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42964931 is a prime.

It is a super-2 number, since 2×42964931² = 3691970591669522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42964937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21482465 + 21482466.

It is an arithmetic number, because the mean of its divisors is an integer number (21482466).

Almost surely, 2^42964931 is an apocalyptic number.

42964931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42964931 is an equidigital number, since it uses as much as digits as its factorization.

42964931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 42964931 is about 6554.7639927003. The cubic root of 42964931 is about 350.2445393087.

The spelling of 42964931 in words is "forty-two million, nine hundred sixty-four thousand, nine hundred thirty-one".