22993971 has 96 divisors (see below), whose sum is σ = 44974080. Its totient is φ = 10108800.

The previous prime is 22993967. The next prime is 22993981. The reversal of 22993971 is 17939922.

It is a happy number.

It is not a de Polignac number, because 22993971 - 2² = 22993967 is a prime.

Its product of digits (61236) is a multiple of the sum of its prime divisors (84).

It is not an unprimeable number, because it can be changed into a prime (22993961) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 741726 + ... + 741756.

It is an arithmetic number, because the mean of its divisors is an integer number (468480).

Almost surely, 2^22993971 is an apocalyptic number.

22993971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22993971 is a deficient number, since it is larger than the sum of its proper divisors (21980109).

22993971 is a wasteful number, since it uses less digits than its factorization.

22993971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 22993971 is about 4795.2029154145. The cubic root of 22993971 is about 284.3618470107.

It can be divided in two parts, 2299 and 3971, that multiplied together give a cube (9129329 = 209³).

The spelling of 22993971 in words is "twenty-two million, nine hundred ninety-three thousand, nine hundred seventy-one".