109903478 has 8 divisors (see below), whose sum is σ = 165044568. Its totient is φ = 54888624.

The previous prime is 109903477. The next prime is 109903483. The reversal of 109903478 is 874309901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×109903478⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109903477) 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, 29351 + ... + 32882.

It is an arithmetic number, because the mean of its divisors is an integer number (20630571).

Almost surely, 2^109903478 is an apocalyptic number.

109903478 is a deficient number, since it is larger than the sum of its proper divisors (55141090).

109903478 is an equidigital number, since it uses as much as digits as its factorization.

109903478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63118.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 109903478 is about 10483.4859660325. The cubic root of 109903478 is about 479.0018000203.

The spelling of 109903478 in words is "one hundred nine million, nine hundred three thousand, four hundred seventy-eight".