22967978 has 24 divisors (see below), whose sum is σ = 38265696. Its totient is φ = 10330760.

The previous prime is 22967957. The next prime is 22968047. The reversal of 22967978 is 87976922.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25451 + ... + 26337.

It is an arithmetic number, because the mean of its divisors is an integer number (1594404).

Almost surely, 2^22967978 is an apocalyptic number.

22967978 is a deficient number, since it is larger than the sum of its proper divisors (15297718).

22967978 is a wasteful number, since it uses less digits than its factorization.

22967978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1007 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 22967978 is about 4792.4918361954. The cubic root of 22967978 is about 284.2546565303.

The spelling of 22967978 in words is "twenty-two million, nine hundred sixty-seven thousand, nine hundred seventy-eight".