2421931 has 2 divisors, whose sum is σ = 2421932. Its totient is φ = 2421930.

The previous prime is 2421919. The next prime is 2421943. The reversal of 2421931 is 1391242.

It is a balanced prime because it is at equal distance from previous prime (2421919) and next prime (2421943).

It is a cyclic number.

It is not a de Polignac number, because 2421931 - 2¹¹ = 2419883 is a prime.

It is a super-2 number, since 2×2421931² = 11731499537522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2421901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210965 + 1210966.

It is an arithmetic number, because the mean of its divisors is an integer number (1210966).

2^2421931 is an apocalyptic number.

2421931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421931 is an equidigital number, since it uses as much as digits as its factorization.

2421931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 2421931 is about 1556.2554417576. The cubic root of 2421931 is about 134.2931689259.

The spelling of 2421931 in words is "two million, four hundred twenty-one thousand, nine hundred thirty-one".