11389983 has 32 divisors (see below), whose sum is σ = 17832960. Its totient is φ = 6389760.

The previous prime is 11389979. The next prime is 11389997. The reversal of 11389983 is 38998311.

It is a happy number.

It is not a de Polignac number, because 11389983 - 2² = 11389979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11389913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44191 + ... + 44447.

It is an arithmetic number, because the mean of its divisors is an integer number (557280).

Almost surely, 2^11389983 is an apocalyptic number.

11389983 is a deficient number, since it is larger than the sum of its proper divisors (6442977).

11389983 is a wasteful number, since it uses less digits than its factorization.

11389983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its digits is 46656, while the sum is 42.

The square root of 11389983 is about 3374.9048875487. The cubic root of 11389983 is about 224.9957727601.

The spelling of 11389983 in words is "eleven million, three hundred eighty-nine thousand, nine hundred eighty-three".