1685353803 has 16 divisors (see below), whose sum is σ = 2719226880. Its totient is φ = 906408576.

The previous prime is 1685353783. The next prime is 1685353853. The reversal of 1685353803 is 3083535861.

It is not a de Polignac number, because 1685353803 - 2¹⁸ = 1685091659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1685353853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2360083 + ... + 2360796.

It is an arithmetic number, because the mean of its divisors is an integer number (169951680).

Almost surely, 2^1685353803 is an apocalyptic number.

1685353803 is a deficient number, since it is larger than the sum of its proper divisors (1033873077).

1685353803 is a wasteful number, since it uses less digits than its factorization.

1685353803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720906.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1685353803 is about 41053.0608237681. The cubic root of 1685353803 is about 1190.0458525749.

The spelling of 1685353803 in words is "one billion, six hundred eighty-five million, three hundred fifty-three thousand, eight hundred three".