704987 has 4 divisors (see below), whose sum is σ = 706776. Its totient is φ = 703200.

The previous prime is 704983. The next prime is 704989. The reversal of 704987 is 789407.

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

It is a cyclic number.

It is not a de Polignac number, because 704987 - 2² = 704983 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (704983) 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, 14 + ... + 1187.

It is an arithmetic number, because the mean of its divisors is an integer number (176694).

2⁷⁰⁴⁹⁸⁷ is an apocalyptic number.

704987 is a deficient number, since it is larger than the sum of its proper divisors (1789).

704987 is a wasteful number, since it uses less digits than its factorization.

704987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 704987 is about 839.6350397643. The cubic root of 704987 is about 89.0007574737. Note that the first 3 decimals are identical.

The spelling of 704987 in words is "seven hundred four thousand, nine hundred eighty-seven".