4981631 has 2 divisors, whose sum is σ = 4981632. Its totient is φ = 4981630.

The previous prime is 4981609. The next prime is 4981633. The reversal of 4981631 is 1361894.

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-4981631 is a prime.

It is a super-2 number, since 2×4981631² = 49633294840322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 4981633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4981633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490815 + 2490816.

It is an arithmetic number, because the mean of its divisors is an integer number (2490816).

Almost surely, 2^4981631 is an apocalyptic number.

4981631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4981631 is an equidigital number, since it uses as much as digits as its factorization.

4981631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 4981631 is about 2231.9567648142. The cubic root of 4981631 is about 170.7879340529.

The spelling of 4981631 in words is "four million, nine hundred eighty-one thousand, six hundred thirty-one".