785216983 has 4 divisors (see below), whose sum is σ = 788272560. Its totient is φ = 782161408.

The previous prime is 785216969. The next prime is 785217001. The reversal of 785216983 is 389612587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 785216983 - 2⁵ = 785216951 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785216683) 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, 1527403 + ... + 1527916.

It is an arithmetic number, because the mean of its divisors is an integer number (197068140).

Almost surely, 2^785216983 is an apocalyptic number.

785216983 is a deficient number, since it is larger than the sum of its proper divisors (3055577).

785216983 is a wasteful number, since it uses less digits than its factorization.

785216983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055576.

The product of its digits is 725760, while the sum is 49.

The square root of 785216983 is about 28021.7234123813. The cubic root of 785216983 is about 922.5641225199.

The spelling of 785216983 in words is "seven hundred eighty-five million, two hundred sixteen thousand, nine hundred eighty-three".