1685050373 has 4 divisors (see below), whose sum is σ = 1685202720. Its totient is φ = 1684898028.

The previous prime is 1685050369. The next prime is 1685050379. The reversal of 1685050373 is 3730505861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3730505861 = 23 ⋅162195907.

It is a cyclic number.

It is not a de Polignac number, because 1685050373 - 2² = 1685050369 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 (1685050379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58163 + ... + 82176.

It is an arithmetic number, because the mean of its divisors is an integer number (421300680).

Almost surely, 2^1685050373 is an apocalyptic number.

It is an amenable number.

1685050373 is a deficient number, since it is larger than the sum of its proper divisors (152347).

1685050373 is a wasteful number, since it uses less digits than its factorization.

1685050373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152346.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1685050373 is about 41049.3650742615. The cubic root of 1685050373 is about 1189.9744299286.

The spelling of 1685050373 in words is "one billion, six hundred eighty-five million, fifty thousand, three hundred seventy-three".