22487147 has 8 divisors (see below), whose sum is σ = 23119152. Its totient is φ = 21859200.

The previous prime is 22487131. The next prime is 22487161. The reversal of 22487147 is 74178422.

It is a happy number.

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 22487147 - 2⁴ = 22487131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22483147) 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, 12743 + ... + 14399.

It is an arithmetic number, because the mean of its divisors is an integer number (2889894).

Almost surely, 2^22487147 is an apocalyptic number.

22487147 is a deficient number, since it is larger than the sum of its proper divisors (632005).

22487147 is a wasteful number, since it uses less digits than its factorization.

22487147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its digits is 25088, while the sum is 35.

The square root of 22487147 is about 4742.0614715543. The cubic root of 22487147 is about 282.2570422647.

The spelling of 22487147 in words is "twenty-two million, four hundred eighty-seven thousand, one hundred forty-seven".