22992047 has 4 divisors (see below), whose sum is σ = 24760680. Its totient is φ = 21223416.

The previous prime is 22992043. The next prime is 22992077. The reversal of 22992047 is 74029922.

It is a happy number.

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 22992047 - 2² = 22992043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22991998 and 22992016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22992043) 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, 884297 + ... + 884322.

It is an arithmetic number, because the mean of its divisors is an integer number (6190170).

Almost surely, 2^22992047 is an apocalyptic number.

22992047 is a deficient number, since it is larger than the sum of its proper divisors (1768633).

22992047 is a wasteful number, since it uses less digits than its factorization.

22992047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768632.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22992047 is about 4795.0022940558. The cubic root of 22992047 is about 284.3539155482.

The spelling of 22992047 in words is "twenty-two million, nine hundred ninety-two thousand, forty-seven".