22928709 has 8 divisors (see below), whose sum is σ = 30857760. Its totient is φ = 15142736.

The previous prime is 22928693. The next prime is 22928729. The reversal of 22928709 is 90782922.

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

It is a cyclic number.

It is not a de Polignac number, because 22928709 - 2⁴ = 22928693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22928729) 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, 35394 + ... + 36035.

It is an arithmetic number, because the mean of its divisors is an integer number (3857220).

Almost surely, 2^22928709 is an apocalyptic number.

It is an amenable number.

22928709 is a deficient number, since it is larger than the sum of its proper divisors (7929051).

22928709 is a wasteful number, since it uses less digits than its factorization.

22928709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71539.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 22928709 is about 4788.3931542846. The cubic root of 22928709 is about 284.0925647155.

The spelling of 22928709 in words is "twenty-two million, nine hundred twenty-eight thousand, seven hundred nine".