22628047 has 8 divisors (see below), whose sum is σ = 25155200. Its totient is φ = 20213280.

The previous prime is 22628027. The next prime is 22628051. The reversal of 22628047 is 74082622.

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 22628047 - 2²³ = 14239439 is a prime.

It is a super-2 number, since 2×22628047² = 1024057022068418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22628017) 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, 27672 + ... + 28477.

It is an arithmetic number, because the mean of its divisors is an integer number (3144400).

Almost surely, 2^22628047 is an apocalyptic number.

22628047 is a deficient number, since it is larger than the sum of its proper divisors (2527153).

22628047 is a wasteful number, since it uses less digits than its factorization.

22628047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56193.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22628047 is about 4756.8946803561. The cubic root of 22628047 is about 282.8453374587.

The spelling of 22628047 in words is "twenty-two million, six hundred twenty-eight thousand, forty-seven".