705004421 has 4 divisors (see below), whose sum is σ = 769095744. Its totient is φ = 640913100.

The previous prime is 705004373. The next prime is 705004423. The reversal of 705004421 is 124400507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705004421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705004423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32045645 + ... + 32045666.

It is an arithmetic number, because the mean of its divisors is an integer number (192273936).

Almost surely, 2^705004421 is an apocalyptic number.

It is an amenable number.

705004421 is a deficient number, since it is larger than the sum of its proper divisors (64091323).

705004421 is a wasteful number, since it uses less digits than its factorization.

705004421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64091322.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 705004421 is about 26551.9193468194. The cubic root of 705004421 is about 890.0149056966.

Adding to 705004421 its reverse (124400507), we get a palindrome (829404928).

The spelling of 705004421 in words is "seven hundred five million, four thousand, four hundred twenty-one".