704642 has 8 divisors (see below), whose sum is σ = 1093500. Its totient is φ = 340144.

The previous prime is 704617. The next prime is 704647. The reversal of 704642 is 246407.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 78961 = 791^2 + 281^2 .

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

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (704647) 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, 6017 + ... + 6132.

2⁷⁰⁴⁶⁴² is an apocalyptic number.

704642 is a deficient number, since it is larger than the sum of its proper divisors (388858).

704642 is a wasteful number, since it uses less digits than its factorization.

704642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 704642 is about 839.4295682188. The cubic root of 704642 is about 88.9862369830.

The spelling of 704642 in words is "seven hundred four thousand, six hundred forty-two".