1987033 has 4 divisors (see below), whose sum is σ = 1995940. Its totient is φ = 1978128.

The previous prime is 1987031. The next prime is 1987043. The reversal of 1987033 is 3307891.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1261129 + 725904 = 1123^2 + 852^2 .

It is a cyclic number.

It is not a de Polignac number, because 1987033 - 2¹ = 1987031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1986986 and 1987004.

It is not an unprimeable number, because it can be changed into a prime (1987031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110 + ... + 4567.

It is an arithmetic number, because the mean of its divisors is an integer number (498985).

2^1987033 is an apocalyptic number.

It is an amenable number.

1987033 is a deficient number, since it is larger than the sum of its proper divisors (8907).

1987033 is an equidigital number, since it uses as much as digits as its factorization.

1987033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8906.

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

The square root of 1987033 is about 1409.6215804250. The cubic root of 1987033 is about 125.7192244592.

The spelling of 1987033 in words is "one million, nine hundred eighty-seven thousand, thirty-three".