28613629 has 4 divisors (see below), whose sum is σ = 31214880. Its totient is φ = 26012380.

The previous prime is 28613621. The next prime is 28613671. The reversal of 28613629 is 92631682.

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 28613629 - 2³ = 28613621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28613621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300609 + ... + 1300630.

It is an arithmetic number, because the mean of its divisors is an integer number (7803720).

Almost surely, 2^28613629 is an apocalyptic number.

It is an amenable number.

28613629 is a deficient number, since it is larger than the sum of its proper divisors (2601251).

28613629 is a wasteful number, since it uses less digits than its factorization.

28613629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601250.

The product of its digits is 31104, while the sum is 37.

The square root of 28613629 is about 5349.1708703312. The cubic root of 28613629 is about 305.8611477911.

The spelling of 28613629 in words is "twenty-eight million, six hundred thirteen thousand, six hundred twenty-nine".