163785713 has 8 divisors (see below), whose sum is σ = 201582528. Its totient is φ = 129588624.

The previous prime is 163785709. The next prime is 163785733. The reversal of 163785713 is 317587361.

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 163785713 - 2² = 163785709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163785733) 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, 899831 + ... + 900012.

It is an arithmetic number, because the mean of its divisors is an integer number (25197816).

Almost surely, 2^163785713 is an apocalyptic number.

163785713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163785713 is a deficient number, since it is larger than the sum of its proper divisors (37796815).

163785713 is a wasteful number, since it uses less digits than its factorization.

163785713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799863.

The product of its digits is 105840, while the sum is 41.

The square root of 163785713 is about 12797.8792383738. The cubic root of 163785713 is about 547.1318604112.

The spelling of 163785713 in words is "one hundred sixty-three million, seven hundred eighty-five thousand, seven hundred thirteen".