22872047 has 4 divisors (see below), whose sum is σ = 24951336. Its totient is φ = 20792760.

The previous prime is 22872043. The next prime is 22872049. The reversal of 22872047 is 74027822.

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 22872047 - 2² = 22872043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22872043) 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, 1039628 + ... + 1039649.

It is an arithmetic number, because the mean of its divisors is an integer number (6237834).

Almost surely, 2^22872047 is an apocalyptic number.

22872047 is a deficient number, since it is larger than the sum of its proper divisors (2079289).

22872047 is a wasteful number, since it uses less digits than its factorization.

22872047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079288.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 22872047 is about 4782.4728958981. The cubic root of 22872047 is about 283.8583527920.

Adding to 22872047 its reverse (74027822), we get a palindrome (96899869).

It can be divided in two parts, 2287 and 2047, that added together give a palindrome (4334).

The spelling of 22872047 in words is "twenty-two million, eight hundred seventy-two thousand, forty-seven".