42834931 has 2 divisors, whose sum is σ = 42834932. Its totient is φ = 42834930.

The previous prime is 42834893. The next prime is 42834983. The reversal of 42834931 is 13943824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42834931 is a prime.

It is a super-2 number, since 2×42834931² = 3669662627549522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42834991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21417465 + 21417466.

It is an arithmetic number, because the mean of its divisors is an integer number (21417466).

Almost surely, 2^42834931 is an apocalyptic number.

42834931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42834931 is an equidigital number, since it uses as much as digits as its factorization.

42834931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 42834931 is about 6544.8400286027. The cubic root of 42834931 is about 349.8909347246.

The spelling of 42834931 in words is "forty-two million, eight hundred thirty-four thousand, nine hundred thirty-one".