2650631 has 4 divisors (see below), whose sum is σ = 2667672. Its totient is φ = 2633592.

The previous prime is 2650621. The next prime is 2650639. The reversal of 2650631 is 1360562.

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 2650631 - 2⁶ = 2650567 is a prime.

It is a super-2 number, since 2×2650631² = 14051689396322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁷ + 6⁷ + 5⁹ + 0 + 6⁷ + 3⁸ + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2650597 and 2650606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2650639) 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, 8285 + ... + 8598.

It is an arithmetic number, because the mean of its divisors is an integer number (666918).

2^2650631 is an apocalyptic number.

2650631 is a deficient number, since it is larger than the sum of its proper divisors (17041).

2650631 is a wasteful number, since it uses less digits than its factorization.

2650631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2650631 is about 1628.0758581835. The cubic root of 2650631 is about 138.3937330796.

The spelling of 2650631 in words is "two million, six hundred fifty thousand, six hundred thirty-one".