1973830 has 8 divisors (see below), whose sum is σ = 3552912. Its totient is φ = 789528.

The previous prime is 1973821. The next prime is 1973831. The reversal of 1973830 is 383791.

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

It is a junction number, because it is equal to n+sod(n) for n = 1973792 and 1973801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98682 + ... + 98701.

It is an arithmetic number, because the mean of its divisors is an integer number (444114).

2^1973830 is an apocalyptic number.

1973830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1973830 is a deficient number, since it is larger than the sum of its proper divisors (1579082).

1973830 is a wasteful number, since it uses less digits than its factorization.

1973830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197390.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1973830 is about 1404.9306032684. The cubic root of 1973830 is about 125.4401549564.

The spelling of 1973830 in words is "one million, nine hundred seventy-three thousand, eight hundred thirty".