2602631 has 4 divisors (see below), whose sum is σ = 2634072. Its totient is φ = 2571192.

The previous prime is 2602603. The next prime is 2602637. The reversal of 2602631 is 1362062.

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 2602631 - 2¹⁰ = 2601607 is a prime.

It is a super-2 number, since 2×2602631² = 13547376244322, 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 (2602637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15596 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (658518).

2^2602631 is an apocalyptic number.

2602631 is a deficient number, since it is larger than the sum of its proper divisors (31441).

2602631 is an equidigital number, since it uses as much as digits as its factorization.

2602631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31440.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2602631 is about 1613.2671818394. The cubic root of 2602631 is about 137.5532532018.

Adding to 2602631 its reverse (1362062), we get a palindrome (3964693).

The spelling of 2602631 in words is "two million, six hundred two thousand, six hundred thirty-one".