704642387 has 2 divisors, whose sum is σ = 704642388. Its totient is φ = 704642386.

The previous prime is 704642383. The next prime is 704642437. The reversal of 704642387 is 783246407.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 704642387 - 2² = 704642383 is a prime.

It is not a weakly prime, because it can be changed into another prime (704642383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352321193 + 352321194.

It is an arithmetic number, because the mean of its divisors is an integer number (352321194).

Almost surely, 2^704642387 is an apocalyptic number.

704642387 is a deficient number, since it is larger than the sum of its proper divisors (1).

704642387 is an equidigital number, since it uses as much as digits as its factorization.

704642387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 704642387 is about 26545.1009981126. The cubic root of 704642387 is about 889.8625327387.

The spelling of 704642387 in words is "seven hundred four million, six hundred forty-two thousand, three hundred eighty-seven".