22976993 has 4 divisors (see below), whose sum is σ = 24744468. Its totient is φ = 21209520.

The previous prime is 22976981. The next prime is 22977001. The reversal of 22976993 is 39967922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10705984 + 12271009 = 3272^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 22976993 - 2⁶ = 22976929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22976923) 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, 883718 + ... + 883743.

It is an arithmetic number, because the mean of its divisors is an integer number (6186117).

Almost surely, 2^22976993 is an apocalyptic number.

It is an amenable number.

22976993 is a deficient number, since it is larger than the sum of its proper divisors (1767475).

22976993 is a wasteful number, since it uses less digits than its factorization.

22976993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767474.

The product of its digits is 367416, while the sum is 47.

The square root of 22976993 is about 4793.4322776065. The cubic root of 22976993 is about 284.2918419330.

It can be divided in two parts, 22 and 976993, that multiplied together give a triangular number (21493846 = T₆₅₅₆).

The spelling of 22976993 in words is "twenty-two million, nine hundred seventy-six thousand, nine hundred ninety-three".