22391793 has 6 divisors (see below), whose sum is σ = 32343714. Its totient is φ = 14927856.

The previous prime is 22391753. The next prime is 22391797. The reversal of 22391793 is 39719322.

It can be written as a sum of positive squares in only one way, i.e., 13046544 + 9345249 = 3612^2 + 3057^2 .

It is not a de Polignac number, because 22391793 - 2¹⁶ = 22326257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22391797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1243980 + ... + 1243997.

It is an arithmetic number, because the mean of its divisors is an integer number (5390619).

Almost surely, 2^22391793 is an apocalyptic number.

It is an amenable number.

22391793 is a deficient number, since it is larger than the sum of its proper divisors (9951921).

22391793 is a wasteful number, since it uses less digits than its factorization.

22391793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487983 (or 2487980 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 22391793 is about 4731.9967244283. The cubic root of 22391793 is about 281.8575181840.

The spelling of 22391793 in words is "twenty-two million, three hundred ninety-one thousand, seven hundred ninety-three".