4099631 has 4 divisors (see below), whose sum is σ = 4199664. Its totient is φ = 3999600.

The previous prime is 4099621. The next prime is 4099661. The reversal of 4099631 is 1369904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4099631 - 2¹⁰ = 4098607 is a prime.

It is a super-2 number, since 2×4099631² = 33613948672322, 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 (4099621) 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, 49955 + ... + 50036.

It is an arithmetic number, because the mean of its divisors is an integer number (1049916).

Almost surely, 2^4099631 is an apocalyptic number.

4099631 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4099631 is a deficient number, since it is larger than the sum of its proper divisors (100033).

4099631 is an equidigital number, since it uses as much as digits as its factorization.

4099631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100032.

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

The square root of 4099631 is about 2024.7545530261. The cubic root of 4099631 is about 160.0472646823.

The spelling of 4099631 in words is "four million, ninety-nine thousand, six hundred thirty-one".