9372749 has 4 divisors (see below), whose sum is σ = 9381564. Its totient is φ = 9363936.

The previous prime is 9372709. The next prime is 9372751. The reversal of 9372749 is 9472739.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9472739 = 383 ⋅24733.

It can be written as a sum of positive squares in 2 ways, for example, as 2706025 + 6666724 = 1645^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 9372749 - 2¹⁶ = 9307213 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 (9372709) 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, 2552 + ... + 5025.

It is an arithmetic number, because the mean of its divisors is an integer number (2345391).

Almost surely, 2^9372749 is an apocalyptic number.

It is an amenable number.

9372749 is a deficient number, since it is larger than the sum of its proper divisors (8815).

9372749 is a wasteful number, since it uses less digits than its factorization.

9372749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8814.

The product of its digits is 95256, while the sum is 41.

The square root of 9372749 is about 3061.4945696506. The cubic root of 9372749 is about 210.8412888241.

The spelling of 9372749 in words is "nine million, three hundred seventy-two thousand, seven hundred forty-nine".