704343891 has 4 divisors (see below), whose sum is σ = 939125192. Its totient is φ = 469562592.

The previous prime is 704343859. The next prime is 704343929. The reversal of 704343891 is 198343407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198343407 = 3 ⋅66114469.

It is not a de Polignac number, because 704343891 - 2⁵ = 704343859 is a prime.

It is a super-2 number, since 2×704343891² = 992200633578039762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704343811) 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, 117390646 + ... + 117390651.

It is an arithmetic number, because the mean of its divisors is an integer number (234781298).

Almost surely, 2^704343891 is an apocalyptic number.

704343891 is a deficient number, since it is larger than the sum of its proper divisors (234781301).

704343891 is a wasteful number, since it uses less digits than its factorization.

704343891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234781300.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 704343891 is about 26539.4779715050. The cubic root of 704343891 is about 889.7368624095.

The spelling of 704343891 in words is "seven hundred four million, three hundred forty-three thousand, eight hundred ninety-one".