2309629 has 4 divisors (see below), whose sum is σ = 2639584. Its totient is φ = 1979676.

The previous prime is 2309609. The next prime is 2309633. The reversal of 2309629 is 9269032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2309629 - 2⁹ = 2309117 is a prime.

It is a super-2 number, since 2×2309629² = 10668772235282, 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 2309629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309609) 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, 164967 + ... + 164980.

It is an arithmetic number, because the mean of its divisors is an integer number (659896).

2^2309629 is an apocalyptic number.

It is an amenable number.

2309629 is a deficient number, since it is larger than the sum of its proper divisors (329955).

2309629 is an equidigital number, since it uses as much as digits as its factorization.

2309629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329954.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 2309629 is about 1519.7463604168. The cubic root of 2309629 is about 132.1845635233.

The spelling of 2309629 in words is "two million, three hundred nine thousand, six hundred twenty-nine".