189496407 has 4 divisors (see below), whose sum is σ = 252661880. Its totient is φ = 126330936.

The previous prime is 189496369. The next prime is 189496427. The reversal of 189496407 is 704694981.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 189496407 - 2¹⁴ = 189480023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189496427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31582732 + ... + 31582737.

It is an arithmetic number, because the mean of its divisors is an integer number (63165470).

Almost surely, 2^189496407 is an apocalyptic number.

189496407 is a deficient number, since it is larger than the sum of its proper divisors (63165473).

189496407 is an equidigital number, since it uses as much as digits as its factorization.

189496407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63165472.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 189496407 is about 13765.7693936808. The cubic root of 189496407 is about 574.3813454534.

The spelling of 189496407 in words is "one hundred eighty-nine million, four hundred ninety-six thousand, four hundred seven".