1613898 has 96 divisors (see below), whose sum is σ = 4468800. Its totient is φ = 427680.

The previous prime is 1613873. The next prime is 1613921. The reversal of 1613898 is 8983161.

Its product of digits (10368) is a multiple of the sum of its prime divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84933 + ... + 84951.

It is an arithmetic number, because the mean of its divisors is an integer number (46550).

2^1613898 is an apocalyptic number.

1613898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2234400).

1613898 is an abundant number, since it is smaller than the sum of its proper divisors (2854902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613898 is a wasteful number, since it uses less digits than its factorization.

1613898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 48 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1613898 is about 1270.3928526247. The cubic root of 1613898 is about 117.2983836879.

The spelling of 1613898 in words is "one million, six hundred thirteen thousand, eight hundred ninety-eight".