4990631 has 2 divisors, whose sum is σ = 4990632. Its totient is φ = 4990630.

The previous prime is 4990613. The next prime is 4990637. The reversal of 4990631 is 1360994.

Together with previous prime (4990613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4990631 - 2⁶ = 4990567 is a prime.

It is a super-2 number, since 2×4990631² = 49812795556322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4990637) 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, 2495315 + 2495316.

It is an arithmetic number, because the mean of its divisors is an integer number (2495316).

Almost surely, 2^4990631 is an apocalyptic number.

4990631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4990631 is an equidigital number, since it uses as much as digits as its factorization.

4990631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 4990631 is about 2233.9720231015. The cubic root of 4990631 is about 170.8907227900.

The spelling of 4990631 in words is "four million, nine hundred ninety thousand, six hundred thirty-one".