22739797 has 4 divisors (see below), whose sum is σ = 22814176. Its totient is φ = 22665420.

The previous prime is 22739791. The next prime is 22739803. The reversal of 22739797 is 79793722.

It is a happy number.

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: 79793722 = 2 ⋅39896861.

It is an interprime number because it is at equal distance from previous prime (22739791) and next prime (22739803).

It is a cyclic number.

It is not a de Polignac number, because 22739797 - 2⁷ = 22739669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22739791) 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, 36729 + ... + 37342.

It is an arithmetic number, because the mean of its divisors is an integer number (5703544).

Almost surely, 2^22739797 is an apocalyptic number.

It is an amenable number.

22739797 is a deficient number, since it is larger than the sum of its proper divisors (74379).

22739797 is an equidigital number, since it uses as much as digits as its factorization.

22739797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74378.

The product of its digits is 333396, while the sum is 46.

The square root of 22739797 is about 4768.6263221184. The cubic root of 22739797 is about 283.3101894206.

The spelling of 22739797 in words is "twenty-two million, seven hundred thirty-nine thousand, seven hundred ninety-seven".