22397371 has 4 divisors (see below), whose sum is σ = 23576200. Its totient is φ = 21218544.

The previous prime is 22397351. The next prime is 22397393. The reversal of 22397371 is 17379322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17379322 = 2 ⋅8689661.

It is a cyclic number.

It is not a de Polignac number, because 22397371 - 2¹³ = 22389179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22397311) 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, 589386 + ... + 589423.

It is an arithmetic number, because the mean of its divisors is an integer number (5894050).

Almost surely, 2^22397371 is an apocalyptic number.

22397371 is a deficient number, since it is larger than the sum of its proper divisors (1178829).

22397371 is a wasteful number, since it uses less digits than its factorization.

22397371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178828.

The product of its digits is 15876, while the sum is 34.

The square root of 22397371 is about 4732.5860795130. The cubic root of 22397371 is about 281.8809206676.

The spelling of 22397371 in words is "twenty-two million, three hundred ninety-seven thousand, three hundred seventy-one".