22472851 has 4 divisors (see below), whose sum is σ = 22560552. Its totient is φ = 22385152.

The previous prime is 22472837. The next prime is 22472867. The reversal of 22472851 is 15827422.

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 22472851 - 2²¹ = 20375699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22472881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43465 + ... + 43978.

It is an arithmetic number, because the mean of its divisors is an integer number (5640138).

Almost surely, 2^22472851 is an apocalyptic number.

22472851 is a deficient number, since it is larger than the sum of its proper divisors (87701).

22472851 is an equidigital number, since it uses as much as digits as its factorization.

22472851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87700.

The product of its digits is 8960, while the sum is 31.

The square root of 22472851 is about 4740.5538705936. The cubic root of 22472851 is about 282.1972154656.

The spelling of 22472851 in words is "twenty-two million, four hundred seventy-two thousand, eight hundred fifty-one".