22828709 has 16 divisors (see below), whose sum is σ = 24806400. Its totient is φ = 20942064.

The previous prime is 22828681. The next prime is 22828711. The reversal of 22828709 is 90782822.

It is a cyclic number.

It is not a de Polignac number, because 22828709 - 2²⁰ = 21780133 is a prime.

It is a super-2 number, since 2×22828709² = 1042299909213362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22828609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100454 + ... + 100680.

It is an arithmetic number, because the mean of its divisors is an integer number (1550400).

Almost surely, 2^22828709 is an apocalyptic number.

It is an amenable number.

22828709 is a deficient number, since it is larger than the sum of its proper divisors (1977691).

22828709 is a wasteful number, since it uses less digits than its factorization.

22828709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 22828709 is about 4777.9398280012. The cubic root of 22828709 is about 283.6789543128.

The spelling of 22828709 in words is "twenty-two million, eight hundred twenty-eight thousand, seven hundred nine".