22897929 has 16 divisors (see below), whose sum is σ = 32470848. Its totient is φ = 14303232.

The previous prime is 22897909. The next prime is 22897943. The reversal of 22897929 is 92979822.

22897929 = T₂ + T₃ + ... + T₅₁₅.

It is a happy number.

It is not a de Polignac number, because 22897929 - 2¹⁷ = 22766857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22897909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12234 + ... + 13980.

It is an arithmetic number, because the mean of its divisors is an integer number (2029428).

Almost surely, 2^22897929 is an apocalyptic number.

It is an amenable number.

22897929 is a deficient number, since it is larger than the sum of its proper divisors (9572919).

22897929 is a wasteful number, since it uses less digits than its factorization.

22897929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024.

The product of its digits is 326592, while the sum is 48.

The square root of 22897929 is about 4785.1780531136. The cubic root of 22897929 is about 283.9653837661.

The spelling of 22897929 in words is "twenty-two million, eight hundred ninety-seven thousand, nine hundred twenty-nine".