9000749 has 4 divisors (see below), whose sum is σ = 9008160. Its totient is φ = 8993340.

The previous prime is 9000743. The next prime is 9000767. The reversal of 9000749 is 9470009.

9000749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9470009 = 127 ⋅74567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9000749 is a prime.

It is a super-2 number, since 2×9000749² = 162026965122002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000743) 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, 1409 + ... + 4470.

It is an arithmetic number, because the mean of its divisors is an integer number (2252040).

Almost surely, 2^9000749 is an apocalyptic number.

It is an amenable number.

9000749 is a deficient number, since it is larger than the sum of its proper divisors (7411).

9000749 is a wasteful number, since it uses less digits than its factorization.

9000749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 9000749 is about 3000.1248307362. The cubic root of 9000749 is about 208.0141524517.

The spelling of 9000749 in words is "nine million, seven hundred forty-nine", and thus it is an aban number.