22679949 has 4 divisors (see below), whose sum is σ = 30239936. Its totient is φ = 15119964.

The previous prime is 22679947. The next prime is 22679971. The reversal of 22679949 is 94997622.

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 not a de Polignac number, because 22679949 - 2¹ = 22679947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22679898 and 22679907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22679947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3779989 + ... + 3779994.

It is an arithmetic number, because the mean of its divisors is an integer number (7559984).

Almost surely, 2^22679949 is an apocalyptic number.

It is an amenable number.

22679949 is a deficient number, since it is larger than the sum of its proper divisors (7559987).

22679949 is an equidigital number, since it uses as much as digits as its factorization.

22679949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7559986.

The product of its digits is 489888, while the sum is 48.

The square root of 22679949 is about 4762.3470054166. The cubic root of 22679949 is about 283.0614266474.

The spelling of 22679949 in words is "twenty-two million, six hundred seventy-nine thousand, nine hundred forty-nine".