1670429999 has 8 divisors (see below), whose sum is σ = 1909732128. Its totient is φ = 1431295200.

The previous prime is 1670429989. The next prime is 1670430023. The reversal of 1670429999 is 9999240761.

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 1670429999 - 2⁴ = 1670429983 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 (1670429939) 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 7 ways as a sum of consecutive naturals, for example, 19652 + ... + 61049.

It is an arithmetic number, because the mean of its divisors is an integer number (238716516).

Almost surely, 2^1670429999 is an apocalyptic number.

1670429999 is a deficient number, since it is larger than the sum of its proper divisors (239302129).

1670429999 is an equidigital number, since it uses as much as digits as its factorization.

1670429999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83665.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 1670429999 is about 40870.8942769791. The cubic root of 1670429999 is about 1186.5228154418.

The spelling of 1670429999 in words is "one billion, six hundred seventy million, four hundred twenty-nine thousand, nine hundred ninety-nine".