4911931 has 2 divisors, whose sum is σ = 4911932. Its totient is φ = 4911930.

The previous prime is 4911901. The next prime is 4911941. The reversal of 4911931 is 1391194.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4911931 is a prime.

It is a super-2 number, since 2×4911931² = 48254132297522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4911931.

It is not a weakly prime, because it can be changed into another prime (4911901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2455965 + 2455966.

It is an arithmetic number, because the mean of its divisors is an integer number (2455966).

Almost surely, 2^4911931 is an apocalyptic number.

4911931 is a deficient number, since it is larger than the sum of its proper divisors (1).

4911931 is an equidigital number, since it uses as much as digits as its factorization.

4911931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The square root of 4911931 is about 2216.2876618345. The cubic root of 4911931 is about 169.9876692325.

It can be divided in two parts, 491193 and 1, that added together give a palindrome (491194).

The spelling of 4911931 in words is "four million, nine hundred eleven thousand, nine hundred thirty-one".