28926765 has 48 divisors (see below), whose sum is σ = 57822336. Its totient is φ = 13104000.

The previous prime is 28926743. The next prime is 28926791. The reversal of 28926765 is 56762982.

It is not a de Polignac number, because 28926765 - 2⁸ = 28926509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28926765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40915 + ... + 41615.

It is an arithmetic number, because the mean of its divisors is an integer number (1204632).

Almost surely, 2^28926765 is an apocalyptic number.

It is an amenable number.

28926765 is a deficient number, since it is larger than the sum of its proper divisors (28895571).

28926765 is a wasteful number, since it uses less digits than its factorization.

28926765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 847 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28926765 is about 5378.3608097635. The cubic root of 28926765 is about 306.9728425793.

The spelling of 28926765 in words is "twenty-eight million, nine hundred twenty-six thousand, seven hundred sixty-five".