1682378993 has 8 divisors (see below), whose sum is σ = 1690113600. Its totient is φ = 1674655888.

The previous prime is 1682378989. The next prime is 1682379037. The reversal of 1682378993 is 3998732861.

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 1682378993 - 2² = 1682378989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1682378903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433580 + ... + 437442.

It is an arithmetic number, because the mean of its divisors is an integer number (211264200).

Almost surely, 2^1682378993 is an apocalyptic number.

It is an amenable number.

1682378993 is a deficient number, since it is larger than the sum of its proper divisors (7734607).

1682378993 is a wasteful number, since it uses less digits than its factorization.

1682378993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751.

The product of its digits is 3919104, while the sum is 56.

The square root of 1682378993 is about 41016.8135403032. The cubic root of 1682378993 is about 1189.3452587791.

The spelling of 1682378993 in words is "one billion, six hundred eighty-two million, three hundred seventy-eight thousand, nine hundred ninety-three".