9220739 has 4 divisors (see below), whose sum is σ = 10059000. Its totient is φ = 8382480.

The previous prime is 9220721. The next prime is 9220751. The reversal of 9220739 is 9370229.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370229 = 11 ⋅851839.

It is a cyclic number.

It is not a de Polignac number, because 9220739 - 2⁸ = 9220483 is a prime.

It is a super-2 number, since 2×9220739² = 170044055412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9220709) 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, 419114 + ... + 419135.

It is an arithmetic number, because the mean of its divisors is an integer number (2514750).

Almost surely, 2^9220739 is an apocalyptic number.

9220739 is a deficient number, since it is larger than the sum of its proper divisors (838261).

9220739 is a wasteful number, since it uses less digits than its factorization.

9220739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838260.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 9220739 is about 3036.5669760438. The cubic root of 9220739 is about 209.6952419918.

The spelling of 9220739 in words is "nine million, two hundred twenty thousand, seven hundred thirty-nine".