9223749 has 24 divisors (see below), whose sum is σ = 13840632. Its totient is φ = 5915520.

The previous prime is 9223733. The next prime is 9223751. The reversal of 9223749 is 9473229.

9223749 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42849 + 9180900 = 207^2 + 3030^2 .

It is not a de Polignac number, because 9223749 - 2⁴ = 9223733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9223549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28939 + ... + 29255.

It is an arithmetic number, because the mean of its divisors is an integer number (576693).

Almost surely, 2^9223749 is an apocalyptic number.

It is an amenable number.

9223749 is a deficient number, since it is larger than the sum of its proper divisors (4616883).

9223749 is a wasteful number, since it uses less digits than its factorization.

9223749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 9223749 is about 3037.0625610942. The cubic root of 9223749 is about 209.7180570109.

The spelling of 9223749 in words is "nine million, two hundred twenty-three thousand, seven hundred forty-nine".