22899871 has 4 divisors (see below), whose sum is σ = 23016312. Its totient is φ = 22783432.

The previous prime is 22899859. The next prime is 22899889. The reversal of 22899871 is 17899822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17899822 = 2 ⋅8949911.

It is a cyclic number.

It is not a de Polignac number, because 22899871 - 2⁵ = 22899839 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 (22899671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57925 + ... + 58318.

It is an arithmetic number, because the mean of its divisors is an integer number (5754078).

Almost surely, 2^22899871 is an apocalyptic number.

22899871 is a deficient number, since it is larger than the sum of its proper divisors (116441).

22899871 is a wasteful number, since it uses less digits than its factorization.

22899871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116440.

The product of its digits is 145152, while the sum is 46.

The square root of 22899871 is about 4785.3809670704. The cubic root of 22899871 is about 283.9734113506.

The spelling of 22899871 in words is "twenty-two million, eight hundred ninety-nine thousand, eight hundred seventy-one".