1669885339 has 8 divisors (see below), whose sum is σ = 1724417408. Its totient is φ = 1615394880.

The previous prime is 1669885313. The next prime is 1669885387. The reversal of 1669885339 is 9335889661.

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 1669885339 - 2⁷ = 1669885211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1669885039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85279 + ... + 103015.

It is an arithmetic number, because the mean of its divisors is an integer number (215552176).

Almost surely, 2^1669885339 is an apocalyptic number.

1669885339 is a deficient number, since it is larger than the sum of its proper divisors (54532069).

1669885339 is a wasteful number, since it uses less digits than its factorization.

1669885339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20805.

The product of its digits is 8398080, while the sum is 58.

The square root of 1669885339 is about 40864.2305568085. The cubic root of 1669885339 is about 1186.3938423094.

The spelling of 1669885339 in words is "one billion, six hundred sixty-nine million, eight hundred eighty-five thousand, three hundred thirty-nine".