22487463 has 28 divisors (see below), whose sum is σ = 34145320. Its totient is φ = 14801616.

The previous prime is 22487461. The next prime is 22487471. The reversal of 22487463 is 36478422.

It is not a de Polignac number, because 22487463 - 2¹ = 22487461 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 (22487461) 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 27 ways as a sum of consecutive naturals, for example, 79320 + ... + 79602.

Almost surely, 2^22487463 is an apocalyptic number.

22487463 is a deficient number, since it is larger than the sum of its proper divisors (11657857).

22487463 is an equidigital number, since it uses as much as digits as its factorization.

22487463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 395 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 22487463 is about 4742.0947902799. The cubic root of 22487463 is about 282.2583643949.

The spelling of 22487463 in words is "twenty-two million, four hundred eighty-seven thousand, four hundred sixty-three".