378009803 has 4 divisors (see below), whose sum is σ = 378654360. Its totient is φ = 377365248.

The previous prime is 378009799. The next prime is 378009817. The reversal of 378009803 is 308900873.

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 378009803 - 2² = 378009799 is a prime.

It is a super-2 number, since 2×378009803² = 285782822328197618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378008803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321398 + ... + 322571.

It is an arithmetic number, because the mean of its divisors is an integer number (94663590).

Almost surely, 2^378009803 is an apocalyptic number.

378009803 is a deficient number, since it is larger than the sum of its proper divisors (644557).

378009803 is an equidigital number, since it uses as much as digits as its factorization.

378009803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644556.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 378009803 is about 19442.4741995457. The cubic root of 378009803 is about 723.0489296283.

The spelling of 378009803 in words is "three hundred seventy-eight million, nine thousand, eight hundred three".