803382778 has 24 divisors (see below), whose sum is σ = 1374289056. Its totient is φ = 349291800.

The previous prime is 803382773. The next prime is 803382779. The reversal of 803382778 is 877283308.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (803382773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22878 + ... + 46153.

It is an arithmetic number, because the mean of its divisors is an integer number (57262044).

Almost surely, 2^803382778 is an apocalyptic number.

803382778 is a deficient number, since it is larger than the sum of its proper divisors (570906278).

803382778 is a wasteful number, since it uses less digits than its factorization.

803382778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69090 (or 69067 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 803382778 is about 28344.0077970636. The cubic root of 803382778 is about 929.6243821696.

The spelling of 803382778 in words is "eight hundred three million, three hundred eighty-two thousand, seven hundred seventy-eight".