22798709 has 4 divisors (see below), whose sum is σ = 22819104. Its totient is φ = 22778316.

The previous prime is 22798691. The next prime is 22798723. The reversal of 22798709 is 90789722.

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 22798709 - 2¹² = 22794613 is a prime.

It is a super-2 number, since 2×22798709² = 1039562264133362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22798709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22795709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417 + ... + 10790.

It is an arithmetic number, because the mean of its divisors is an integer number (5704776).

Almost surely, 2^22798709 is an apocalyptic number.

It is an amenable number.

22798709 is a deficient number, since it is larger than the sum of its proper divisors (20395).

22798709 is a wasteful number, since it uses less digits than its factorization.

22798709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 22798709 is about 4774.7993675127. The cubic root of 22798709 is about 283.5546357150.

The spelling of 22798709 in words is "twenty-two million, seven hundred ninety-eight thousand, seven hundred nine".