22077923 has 4 divisors (see below), whose sum is σ = 25231920. Its totient is φ = 18923928.

The previous prime is 22077919. The next prime is 22077931. The reversal of 22077923 is 32977022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22077923 - 2² = 22077919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22077923.

It is not an unprimeable number, because it can be changed into a prime (22077973) 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, 1576988 + ... + 1577001.

It is an arithmetic number, because the mean of its divisors is an integer number (6307980).

Almost surely, 2^22077923 is an apocalyptic number.

22077923 is a deficient number, since it is larger than the sum of its proper divisors (3153997).

22077923 is an equidigital number, since it uses as much as digits as its factorization.

22077923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153996.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 22077923 is about 4698.7150371139. The cubic root of 22077923 is about 280.5343664435.

The spelling of 22077923 in words is "twenty-two million, seventy-seven thousand, nine hundred twenty-three".