1669960347 has 8 divisors (see below), whose sum is σ = 2429033280. Its totient is φ = 1012097160.

The previous prime is 1669960319. The next prime is 1669960349. The reversal of 1669960347 is 7430699661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1669960347 - 2⁶ = 1669960283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1669960347.

It is not an unprimeable number, because it can be changed into a prime (1669960349) 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, 25302397 + ... + 25302462.

It is an arithmetic number, because the mean of its divisors is an integer number (303629160).

Almost surely, 2^1669960347 is an apocalyptic number.

1669960347 is a deficient number, since it is larger than the sum of its proper divisors (759072933).

1669960347 is a wasteful number, since it uses less digits than its factorization.

1669960347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50604873.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 1669960347 is about 40865.1483173621. The cubic root of 1669960347 is about 1186.4116055444.

The spelling of 1669960347 in words is "one billion, six hundred sixty-nine million, nine hundred sixty thousand, three hundred forty-seven".