11739021 has 8 divisors (see below), whose sum is σ = 17888064. Its totient is φ = 6708000.

The previous prime is 11739001. The next prime is 11739031. The reversal of 11739021 is 12093711.

11739021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11739021 - 2¹⁰ = 11737997 is a prime.

It is a super-2 number, since 2×11739021² = 275609228076882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11738982 and 11739000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11739001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279480 + ... + 279521.

It is an arithmetic number, because the mean of its divisors is an integer number (2236008).

Almost surely, 2^11739021 is an apocalyptic number.

It is an amenable number.

11739021 is a deficient number, since it is larger than the sum of its proper divisors (6149043).

11739021 is an equidigital number, since it uses as much as digits as its factorization.

11739021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559011.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11739021 is about 3426.2254741917. The cubic root of 11739021 is about 227.2709670215.

The spelling of 11739021 in words is "eleven million, seven hundred thirty-nine thousand, twenty-one".