940931 has 2 divisors, whose sum is σ = 940932. Its totient is φ = 940930.

The previous prime is 940921. The next prime is 940949. The reversal of 940931 is 139049.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940931 is a prime.

It is a super-2 number, since 2×940931² = 1770702293522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 940931.

It is not a weakly prime, because it can be changed into another prime (940921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470465 + 470466.

It is an arithmetic number, because the mean of its divisors is an integer number (470466).

2⁹⁴⁰⁹³¹ is an apocalyptic number.

940931 is a deficient number, since it is larger than the sum of its proper divisors (1).

940931 is an equidigital number, since it uses as much as digits as its factorization.

940931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 940931 is about 970.0159792498. The cubic root of 940931 is about 97.9909404370.

The spelling of 940931 in words is "nine hundred forty thousand, nine hundred thirty-one".