704642987 has 8 divisors (see below), whose sum is σ = 745876800. Its totient is φ = 663823944.

The previous prime is 704642951. The next prime is 704643007. The reversal of 704642987 is 789246407.

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

It is a cyclic number.

It is not a de Polignac number, because 704642987 - 2¹⁰ = 704641963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704642387) 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, 100193 + ... + 106994.

It is an arithmetic number, because the mean of its divisors is an integer number (93234600).

Almost surely, 2^704642987 is an apocalyptic number.

704642987 is a deficient number, since it is larger than the sum of its proper divisors (41233813).

704642987 is a wasteful number, since it uses less digits than its factorization.

704642987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207385.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 704642987 is about 26545.1122996306. The cubic root of 704642987 is about 889.8627853100.

The spelling of 704642987 in words is "seven hundred four million, six hundred forty-two thousand, nine hundred eighty-seven".