203878423 has 8 divisors (see below), whose sum is σ = 233465760. Its totient is φ = 174406560.

The previous prime is 203878403. The next prime is 203878447. The reversal of 203878423 is 324878302.

It is a happy number.

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 203878423 - 2¹³ = 203870231 is a prime.

It is a super-2 number, since 2×203878423² = 83132822729933858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203878403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25048 + ... + 32173.

It is an arithmetic number, because the mean of its divisors is an integer number (29183220).

Almost surely, 2^203878423 is an apocalyptic number.

203878423 is a deficient number, since it is larger than the sum of its proper divisors (29587337).

203878423 is an equidigital number, since it uses as much as digits as its factorization.

203878423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57737.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 203878423 is about 14278.6001764879. The cubic root of 203878423 is about 588.5595647781.

The spelling of 203878423 in words is "two hundred three million, eight hundred seventy-eight thousand, four hundred twenty-three".