1670334189 has 4 divisors (see below), whose sum is σ = 2227112256. Its totient is φ = 1113556124.

The previous prime is 1670334173. The next prime is 1670334223. The reversal of 1670334189 is 9814330761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1670334189 - 2⁴ = 1670334173 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1670334189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670334119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278389029 + ... + 278389034.

It is an arithmetic number, because the mean of its divisors is an integer number (556778064).

Almost surely, 2^1670334189 is an apocalyptic number.

It is an amenable number.

1670334189 is a deficient number, since it is larger than the sum of its proper divisors (556778067).

1670334189 is an equidigital number, since it uses as much as digits as its factorization.

1670334189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556778066.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1670334189 is about 40869.7221546709. The cubic root of 1670334189 is about 1186.5001300805.

The spelling of 1670334189 in words is "one billion, six hundred seventy million, three hundred thirty-four thousand, one hundred eighty-nine".