9942931 has 2 divisors, whose sum is σ = 9942932. Its totient is φ = 9942930.

The previous prime is 9942917. The next prime is 9942941. The reversal of 9942931 is 1392499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9942931 - 2⁹ = 9942419 is a prime.

It is a super-2 number, since 2×9942931² = 197723753741522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9942941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4971465 + 4971466.

It is an arithmetic number, because the mean of its divisors is an integer number (4971466).

Almost surely, 2^9942931 is an apocalyptic number.

9942931 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942931 is an equidigital number, since it uses as much as digits as its factorization.

9942931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 37.

The square root of 9942931 is about 3153.2413482003. The cubic root of 9942931 is about 215.0328487758.

The spelling of 9942931 in words is "nine million, nine hundred forty-two thousand, nine hundred thirty-one".