22716631 has 16 divisors (see below), whose sum is σ = 26897920. Its totient is φ = 18779040.

The previous prime is 22716623. The next prime is 22716637. The reversal of 22716631 is 13661722.

It is not a de Polignac number, because 22716631 - 2³ = 22716623 is a prime.

It is a super-2 number, since 2×22716631² = 1032090647980322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22716631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22716637) 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 15 ways as a sum of consecutive naturals, for example, 35686 + ... + 36316.

It is an arithmetic number, because the mean of its divisors is an integer number (1681120).

Almost surely, 2^22716631 is an apocalyptic number.

22716631 is a deficient number, since it is larger than the sum of its proper divisors (4181289).

22716631 is a wasteful number, since it uses less digits than its factorization.

22716631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814.

The product of its digits is 3024, while the sum is 28.

The square root of 22716631 is about 4766.1967017739. The cubic root of 22716631 is about 283.2139500121.

It can be divided in two parts, 22716 and 631, that multiplied together give a square (14333796 = 3786²).

The spelling of 22716631 in words is "twenty-two million, seven hundred sixteen thousand, six hundred thirty-one".