22933397 has 4 divisors (see below), whose sum is σ = 23673216. Its totient is φ = 22193580.

The previous prime is 22933381. The next prime is 22933409. The reversal of 22933397 is 79333922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79333922 = 2 ⋅39666961.

It is a cyclic number.

It is not a de Polignac number, because 22933397 - 2⁴ = 22933381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22933397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22933327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369863 + ... + 369924.

It is an arithmetic number, because the mean of its divisors is an integer number (5918304).

Almost surely, 2^22933397 is an apocalyptic number.

It is an amenable number.

22933397 is a deficient number, since it is larger than the sum of its proper divisors (739819).

22933397 is an equidigital number, since it uses as much as digits as its factorization.

22933397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739818.

The product of its digits is 61236, while the sum is 38.

The square root of 22933397 is about 4788.8826462965. The cubic root of 22933397 is about 284.1119252355. Note that the first 3 decimals are identical.

The spelling of 22933397 in words is "twenty-two million, nine hundred thirty-three thousand, three hundred ninety-seven".