1699085321 has 8 divisors (see below), whose sum is σ = 1758153600. Its totient is φ = 1640049040.

The previous prime is 1699085303. The next prime is 1699085341. The reversal of 1699085321 is 1235809961.

It is a happy number.

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 1699085321 - 2⁶ = 1699085257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1699085341) 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, 160490 + ... + 170748.

It is an arithmetic number, because the mean of its divisors is an integer number (219769200).

Almost surely, 2^1699085321 is an apocalyptic number.

It is an amenable number.

1699085321 is a deficient number, since it is larger than the sum of its proper divisors (59068279).

1699085321 is a wasteful number, since it uses less digits than its factorization.

1699085321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15999.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 1699085321 is about 41219.9626516085. The cubic root of 1699085321 is about 1193.2691037199.

The spelling of 1699085321 in words is "one billion, six hundred ninety-nine million, eighty-five thousand, three hundred twenty-one".