22348397 has 4 divisors (see below), whose sum is σ = 22357980. Its totient is φ = 22338816.

The previous prime is 22348373. The next prime is 22348409. The reversal of 22348397 is 79384322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11464996 + 10883401 = 3386^2 + 3299^2 .

It is a cyclic number.

It is not a de Polignac number, because 22348397 - 2¹⁶ = 22282861 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 22348397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22348307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229 + ... + 6797.

It is an arithmetic number, because the mean of its divisors is an integer number (5589495).

Almost surely, 2^22348397 is an apocalyptic number.

It is an amenable number.

22348397 is a deficient number, since it is larger than the sum of its proper divisors (9583).

22348397 is an equidigital number, since it uses as much as digits as its factorization.

22348397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582.

The product of its digits is 72576, while the sum is 38.

The square root of 22348397 is about 4727.4091212841. The cubic root of 22348397 is about 281.6753175142.

The spelling of 22348397 in words is "twenty-two million, three hundred forty-eight thousand, three hundred ninety-seven".