1983622 has 4 divisors (see below), whose sum is σ = 2975436. Its totient is φ = 991810.

The previous prime is 1983601. The next prime is 1983643. The reversal of 1983622 is 2263891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2263891 = 7 ⋅323413.

It is an interprime number because it is at equal distance from previous prime (1983601) and next prime (1983643).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495904 + ... + 495907.

It is an arithmetic number, because the mean of its divisors is an integer number (743859).

2^1983622 is an apocalyptic number.

1983622 is a deficient number, since it is larger than the sum of its proper divisors (991814).

1983622 is an equidigital number, since it uses as much as digits as its factorization.

1983622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991813.

The product of its digits is 5184, while the sum is 31.

The square root of 1983622 is about 1408.4111615576. The cubic root of 1983622 is about 125.6472454686.

The spelling of 1983622 in words is "one million, nine hundred eighty-three thousand, six hundred twenty-two".