189003739 has 8 divisors (see below), whose sum is σ = 200283408. Its totient is φ = 177742080.

The previous prime is 189003713. The next prime is 189003743. The reversal of 189003739 is 937300981.

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

It is a cyclic number.

It is not a de Polignac number, because 189003739 - 2⁵ = 189003707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189003769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21424 + ... + 28930.

It is an arithmetic number, because the mean of its divisors is an integer number (25035426).

Almost surely, 2^189003739 is an apocalyptic number.

189003739 is a deficient number, since it is larger than the sum of its proper divisors (11279669).

189003739 is a wasteful number, since it uses less digits than its factorization.

189003739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9005.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 189003739 is about 13747.8630703102. The cubic root of 189003739 is about 573.8831391717.

The spelling of 189003739 in words is "one hundred eighty-nine million, three thousand, seven hundred thirty-nine".