813898 has 8 divisors (see below), whose sum is σ = 1235808. Its totient is φ = 401964.

The previous prime is 813893. The next prime is 813907. The reversal of 813898 is 898318.

813898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (813893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2286 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (154476).

2⁸¹³⁸⁹⁸ is an apocalyptic number.

813898 is a deficient number, since it is larger than the sum of its proper divisors (421910).

813898 is a wasteful number, since it uses less digits than its factorization.

813898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988.

The product of its digits is 13824, while the sum is 37.

The square root of 813898 is about 902.1629564552. The cubic root of 813898 is about 93.3662667225.

It can be divided in two parts, 813 and 898, that added together give a triangular number (1711 = T₅₈).

The spelling of 813898 in words is "eight hundred thirteen thousand, eight hundred ninety-eight".