704840393 has 4 divisors (see below), whose sum is σ = 706029588. Its totient is φ = 703651200.

The previous prime is 704840387. The next prime is 704840407. The reversal of 704840393 is 393048407.

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

It can be written as a sum of positive squares in 2 ways, for example, as 559227904 + 145612489 = 23648^2 + 12067^2 .

It is a cyclic number.

It is not a de Polignac number, because 704840393 - 2⁶ = 704840329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704840333) 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, 593708 + ... + 594893.

It is an arithmetic number, because the mean of its divisors is an integer number (176507397).

Almost surely, 2^704840393 is an apocalyptic number.

It is an amenable number.

704840393 is a deficient number, since it is larger than the sum of its proper divisors (1189195).

704840393 is a wasteful number, since it uses less digits than its factorization.

704840393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189194.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 704840393 is about 26548.8303508836. The cubic root of 704840393 is about 889.9458760168.

The spelling of 704840393 in words is "seven hundred four million, eight hundred forty thousand, three hundred ninety-three".