2872631 has 4 divisors (see below), whose sum is σ = 2997552. Its totient is φ = 2747712.

The previous prime is 2872621. The next prime is 2872669. The reversal of 2872631 is 1362782.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2872631 is a prime.

It is a super-2 number, since 2×2872631² = 16504017724322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2872594 and 2872603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872601) 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, 62426 + ... + 62471.

It is an arithmetic number, because the mean of its divisors is an integer number (749388).

2^2872631 is an apocalyptic number.

2872631 is a deficient number, since it is larger than the sum of its proper divisors (124921).

2872631 is a wasteful number, since it uses less digits than its factorization.

2872631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124920.

The product of its digits is 4032, while the sum is 29.

The square root of 2872631 is about 1694.8837718263. The cubic root of 2872631 is about 142.1542824872.

The spelling of 2872631 in words is "two million, eight hundred seventy-two thousand, six hundred thirty-one".