22679749 has 8 divisors (see below), whose sum is σ = 24028640. Its totient is φ = 21346416.

The previous prime is 22679731. The next prime is 22679773. The reversal of 22679749 is 94797622.

It is a happy number.

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 22679749 - 2⁷ = 22679621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22679699 and 22679708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22679729) 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, 819 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (3003580).

Almost surely, 2^22679749 is an apocalyptic number.

It is an amenable number.

22679749 is a deficient number, since it is larger than the sum of its proper divisors (1348891).

22679749 is a wasteful number, since it uses less digits than its factorization.

22679749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779.

The product of its digits is 381024, while the sum is 46.

The square root of 22679749 is about 4762.3260073204. The cubic root of 22679749 is about 283.0605945989.

The spelling of 22679749 in words is "twenty-two million, six hundred seventy-nine thousand, seven hundred forty-nine".