4989631 has 4 divisors (see below), whose sum is σ = 4995064. Its totient is φ = 4984200.

The previous prime is 4989613. The next prime is 4989637. The reversal of 4989631 is 1369894.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4989631 - 2⁵ = 4989599 is a prime.

It is a super-2 number, since 2×4989631² = 49792835032322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (1248766).

Almost surely, 2^4989631 is an apocalyptic number.

4989631 is a deficient number, since it is larger than the sum of its proper divisors (5433).

4989631 is a wasteful number, since it uses less digits than its factorization.

4989631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432.

The product of its digits is 46656, while the sum is 40.

The square root of 4989631 is about 2233.7481952987. The cubic root of 4989631 is about 170.8793079250.

The spelling of 4989631 in words is "four million, nine hundred eighty-nine thousand, six hundred thirty-one".