2630669 has 4 divisors (see below), whose sum is σ = 2640444. Its totient is φ = 2620896.

The previous prime is 2630627. The next prime is 2630681. The reversal of 2630669 is 9660362.

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

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 2365444 = 515^2 + 1538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2630669 is a prime.

It is a super-2 number, since 2×2630669² = 13840838775122, 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 (2630609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472 + ... + 5025.

It is an arithmetic number, because the mean of its divisors is an integer number (660111).

2^2630669 is an apocalyptic number.

It is an amenable number.

2630669 is a deficient number, since it is larger than the sum of its proper divisors (9775).

2630669 is an equidigital number, since it uses as much as digits as its factorization.

2630669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 2630669 is about 1621.9337224437. The cubic root of 2630669 is about 138.0454411720.

The spelling of 2630669 in words is "two million, six hundred thirty thousand, six hundred sixty-nine".