1893816 has 48 divisors (see below), whose sum is σ = 5311800. Its totient is φ = 608832.

The previous prime is 1893809. The next prime is 1893823. The reversal of 1893816 is 6183981.

It is an interprime number because it is at equal distance from previous prime (1893809) and next prime (1893823).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1635 + ... + 2541.

2^1893816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1893816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2655900).

1893816 is an abundant number, since it is smaller than the sum of its proper divisors (3417984).

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

1893816 is a wasteful number, since it uses less digits than its factorization.

1893816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 941 counting only the distinct ones).

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

The square root of 1893816 is about 1376.1598744332. The cubic root of 1893816 is about 123.7217137676.

It can be divided in two parts, 189 and 3816, that added together give a triangular number (4005 = T₈₉).

The spelling of 1893816 in words is "one million, eight hundred ninety-three thousand, eight hundred sixteen".