13478398 has 4 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 6739198.

The previous prime is 13478389. The next prime is 13478401. The reversal of 13478398 is 89387431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3369598 + ... + 3369601.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^13478398 is an apocalyptic number.

13478398 is a deficient number, since it is larger than the sum of its proper divisors (6739202).

13478398 is an equidigital number, since it uses as much as digits as its factorization.

13478398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739201.

The product of its digits is 145152, while the sum is 43.

The square root of 13478398 is about 3671.2937774033. The cubic root of 13478398 is about 237.9830861506.

The spelling of 13478398 in words is "thirteen million, four hundred seventy-eight thousand, three hundred ninety-eight".