1973808 has 50 divisors (see below), whose sum is σ = 5716524. Its totient is φ = 657504.

The previous prime is 1973779. The next prime is 1973813. The reversal of 1973808 is 8083791.

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

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 535 + ... + 2057.

2^1973808 is an apocalyptic number.

1973808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1973808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2858262).

1973808 is an abundant number, since it is smaller than the sum of its proper divisors (3742716).

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

1973808 is a wasteful number, since it uses less digits than its factorization.

1973808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1973808 is about 1404.9227736783. The cubic root of 1973808 is about 125.4396889092.

It can be divided in two parts, 197 and 3808, that added together give a triangular number (4005 = T₈₉).

The spelling of 1973808 in words is "one million, nine hundred seventy-three thousand, eight hundred eight".