2649629 has 4 divisors (see below), whose sum is σ = 2699676. Its totient is φ = 2599584.

The previous prime is 2649613. The next prime is 2649677. The reversal of 2649629 is 9269462.

2649629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1836025 + 813604 = 1355^2 + 902^2 .

It is a cyclic number.

It is not a de Polignac number, because 2649629 - 2⁴ = 2649613 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2649592 and 2649601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24944 + ... + 25049.

It is an arithmetic number, because the mean of its divisors is an integer number (674919).

2^2649629 is an apocalyptic number.

It is an amenable number.

2649629 is a deficient number, since it is larger than the sum of its proper divisors (50047).

2649629 is an equidigital number, since it uses as much as digits as its factorization.

2649629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50046.

The product of its digits is 46656, while the sum is 38.

The square root of 2649629 is about 1627.7681038772. The cubic root of 2649629 is about 138.3762922014.

The spelling of 2649629 in words is "two million, six hundred forty-nine thousand, six hundred twenty-nine".