13783898 has 4 divisors (see below), whose sum is σ = 20675850. Its totient is φ = 6891948.

The previous prime is 13783883. The next prime is 13783901. The reversal of 13783898 is 89838731.

13783898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 7912969 + 5870929 = 2813^2 + 2423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445973 + ... + 3445976.

Almost surely, 2^13783898 is an apocalyptic number.

13783898 is a deficient number, since it is larger than the sum of its proper divisors (6891952).

13783898 is an equidigital number, since it uses as much as digits as its factorization.

13783898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891951.

The product of its digits is 290304, while the sum is 47.

The square root of 13783898 is about 3712.6672352906. The cubic root of 13783898 is about 239.7677034730.

The spelling of 13783898 in words is "thirteen million, seven hundred eighty-three thousand, eight hundred ninety-eight".