1790987 has 8 divisors (see below), whose sum is σ = 2039040. Its totient is φ = 1557160.

The previous prime is 1790969. The next prime is 1790989. The reversal of 1790987 is 7890971.

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

It is a de Polignac number, because none of the positive numbers 2^k-1790987 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1790989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3287 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (254880).

2^1790987 is an apocalyptic number.

1790987 is a deficient number, since it is larger than the sum of its proper divisors (248053).

1790987 is a wasteful number, since it uses less digits than its factorization.

1790987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 1790987 is about 1338.2776244113. The cubic root of 1790987 is about 121.4406671754.

The spelling of 1790987 in words is "one million, seven hundred ninety thousand, nine hundred eighty-seven".