2869631 has 4 divisors (see below), whose sum is σ = 2939664. Its totient is φ = 2799600.

The previous prime is 2869621. The next prime is 2869649. The reversal of 2869631 is 1369682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1369682 = 2 ⋅684841.

It is a cyclic number.

It is not a de Polignac number, because 2869631 - 2⁶ = 2869567 is a prime.

It is a super-2 number, since 2×2869631² = 16469564152322, 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 = 2869591 and 2869600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2869621) 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, 34955 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (734916).

2^2869631 is an apocalyptic number.

2869631 is a deficient number, since it is larger than the sum of its proper divisors (70033).

2869631 is an equidigital number, since it uses as much as digits as its factorization.

2869631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70032.

The product of its digits is 15552, while the sum is 35.

The square root of 2869631 is about 1693.9985242024. The cubic root of 2869631 is about 142.1047795065.

The spelling of 2869631 in words is "two million, eight hundred sixty-nine thousand, six hundred thirty-one".