22871661 has 8 divisors (see below), whose sum is σ = 31319904. Its totient is φ = 14835600.

The previous prime is 22871659. The next prime is 22871663. The reversal of 22871661 is 16617822.

It is an interprime number because it is at equal distance from previous prime (22871659) and next prime (22871663).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22871661 - 2¹ = 22871659 is a prime.

It is a super-3 number, since 3×22871661³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22871663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102915 + ... + 103136.

It is an arithmetic number, because the mean of its divisors is an integer number (3914988).

Almost surely, 2^22871661 is an apocalyptic number.

It is an amenable number.

22871661 is a deficient number, since it is larger than the sum of its proper divisors (8448243).

22871661 is a wasteful number, since it uses less digits than its factorization.

22871661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206091.

The product of its digits is 8064, while the sum is 33.

The square root of 22871661 is about 4782.4325400365. The cubic root of 22871661 is about 283.8567559383.

It can be divided in two parts, 22871 and 661, that added together give a palindrome (23532).

The spelling of 22871661 in words is "twenty-two million, eight hundred seventy-one thousand, six hundred sixty-one".