189782001 has 8 divisors (see below), whose sum is σ = 281158560. Its totient is φ = 126521316.

The previous prime is 189781997. The next prime is 189782009. The reversal of 189782001 is 100287981.

It is not a de Polignac number, because 189782001 - 2² = 189781997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189782009) 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, 3514455 + ... + 3514508.

It is an arithmetic number, because the mean of its divisors is an integer number (35144820).

Almost surely, 2^189782001 is an apocalyptic number.

It is an amenable number.

189782001 is a deficient number, since it is larger than the sum of its proper divisors (91376559).

189782001 is an equidigital number, since it uses as much as digits as its factorization.

189782001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028972 (or 7028966 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 189782001 is about 13776.1388276977. The cubic root of 189782001 is about 574.6697546607.

The spelling of 189782001 in words is "one hundred eighty-nine million, seven hundred eighty-two thousand, one".