11920039 has 4 divisors (see below), whose sum is σ = 12043024. Its totient is φ = 11797056.

The previous prime is 11920033. The next prime is 11920061. The reversal of 11920039 is 93002911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93002911 = 83 ⋅1120517.

It is a cyclic number.

It is not a de Polignac number, because 11920039 - 2¹⁹ = 11395751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11919995 and 11920022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920033) 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, 61347 + ... + 61540.

It is an arithmetic number, because the mean of its divisors is an integer number (3010756).

Almost surely, 2^11920039 is an apocalyptic number.

11920039 is a deficient number, since it is larger than the sum of its proper divisors (122985).

11920039 is an equidigital number, since it uses as much as digits as its factorization.

11920039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122984.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 11920039 is about 3452.5409483451. The cubic root of 11920039 is about 228.4332009667.

The spelling of 11920039 in words is "eleven million, nine hundred twenty thousand, thirty-nine".