2653631 has 4 divisors (see below), whose sum is σ = 2739264. Its totient is φ = 2568000.

The previous prime is 2653621. The next prime is 2653633. The reversal of 2653631 is 1363562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1363562 = 2 ⋅681781.

It is a cyclic number.

It is not a de Polignac number, because 2653631 - 2¹⁰ = 2652607 is a prime.

It is a super-2 number, since 2×2653631² = 14083514968322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2653631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653633) 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, 42770 + ... + 42831.

It is an arithmetic number, because the mean of its divisors is an integer number (684816).

2^2653631 is an apocalyptic number.

2653631 is a deficient number, since it is larger than the sum of its proper divisors (85633).

2653631 is an equidigital number, since it uses as much as digits as its factorization.

2653631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85632.

The product of its digits is 3240, while the sum is 26.

The square root of 2653631 is about 1628.9969306294. The cubic root of 2653631 is about 138.4459250121.

The spelling of 2653631 in words is "two million, six hundred fifty-three thousand, six hundred thirty-one".