28653629 has 8 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 27800800.

The previous prime is 28653623. The next prime is 28653631. The reversal of 28653629 is 92635682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28653629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28653623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6002 + ... + 9660.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

Almost surely, 2^28653629 is an apocalyptic number.

It is an amenable number.

28653629 is a deficient number, since it is larger than the sum of its proper divisors (860611).

28653629 is a wasteful number, since it uses less digits than its factorization.

28653629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891.

The product of its digits is 155520, while the sum is 41.

The square root of 28653629 is about 5352.9084617617. The cubic root of 28653629 is about 306.0036061204.

The spelling of 28653629 in words is "twenty-eight million, six hundred fifty-three thousand, six hundred twenty-nine".