189479603 has 16 divisors (see below), whose sum is σ = 206790336. Its totient is φ = 172938240.

The previous prime is 189479593. The next prime is 189479659. The reversal of 189479603 is 306974981.

It is a cyclic number.

It is not a de Polignac number, because 189479603 - 2²⁶ = 122370739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189479663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74450 + ... + 76952.

It is an arithmetic number, because the mean of its divisors is an integer number (12924396).

Almost surely, 2^189479603 is an apocalyptic number.

189479603 is a deficient number, since it is larger than the sum of its proper divisors (17310733).

189479603 is a wasteful number, since it uses less digits than its factorization.

189479603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 189479603 is about 13765.1590255979. The cubic root of 189479603 is about 574.3643667859.

The spelling of 189479603 in words is "one hundred eighty-nine million, four hundred seventy-nine thousand, six hundred three".