803785812 has 24 divisors (see below), whose sum is σ = 1921245312. Its totient is φ = 261393600.

The previous prime is 803785793. The next prime is 803785831. The reversal of 803785812 is 218587308.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (803785793) and next prime (803785831).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816364 + ... + 817347.

It is an arithmetic number, because the mean of its divisors is an integer number (80051888).

Almost surely, 2^803785812 is an apocalyptic number.

803785812 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

803785812 is an abundant number, since it is smaller than the sum of its proper divisors (1117459500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

803785812 is a wasteful number, since it uses less digits than its factorization.

803785812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633759 (or 1633757 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 803785812 is about 28351.1165917676. The cubic root of 803785812 is about 929.7798114399.

The spelling of 803785812 in words is "eight hundred three million, seven hundred eighty-five thousand, eight hundred twelve".