9120747 has 4 divisors (see below), whose sum is σ = 12161000. Its totient is φ = 6080496.

The previous prime is 9120743. The next prime is 9120757. The reversal of 9120747 is 7470219.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9120747 - 2² = 9120743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9120743) 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, 1520122 + ... + 1520127.

It is an arithmetic number, because the mean of its divisors is an integer number (3040250).

Almost surely, 2^9120747 is an apocalyptic number.

9120747 is a deficient number, since it is larger than the sum of its proper divisors (3040253).

9120747 is a wasteful number, since it uses less digits than its factorization.

9120747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040252.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 9120747 is about 3020.0574497847. The cubic root of 9120747 is about 208.9344895144.

The spelling of 9120747 in words is "nine million, one hundred twenty thousand, seven hundred forty-seven".