11722039 has 4 divisors (see below), whose sum is σ = 13396624. Its totient is φ = 10047456.

The previous prime is 11722033. The next prime is 11722049. The reversal of 11722039 is 93022711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93022711 = 89 ⋅1045199.

It is a cyclic number.

It is not a de Polignac number, because 11722039 - 2⁷ = 11721911 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 (11722033) 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, 837282 + ... + 837295.

It is an arithmetic number, because the mean of its divisors is an integer number (3349156).

Almost surely, 2^11722039 is an apocalyptic number.

11722039 is a deficient number, since it is larger than the sum of its proper divisors (1674585).

11722039 is an equidigital number, since it uses as much as digits as its factorization.

11722039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674584.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11722039 is about 3423.7463399031. The cubic root of 11722039 is about 227.1613219283.

The spelling of 11722039 in words is "eleven million, seven hundred twenty-two thousand, thirty-nine".