705649367 has 4 divisors (see below), whose sum is σ = 718963560. Its totient is φ = 692335176.

The previous prime is 705649339. The next prime is 705649387. The reversal of 705649367 is 763946507.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 705649367 - 2⁸ = 705649111 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 (705649387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6657017 + ... + 6657122.

It is an arithmetic number, because the mean of its divisors is an integer number (179740890).

Almost surely, 2^705649367 is an apocalyptic number.

705649367 is a deficient number, since it is larger than the sum of its proper divisors (13314193).

705649367 is a wasteful number, since it uses less digits than its factorization.

705649367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314192.

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 705649367 is about 26564.0615682166. The cubic root of 705649367 is about 890.2862215388.

The spelling of 705649367 in words is "seven hundred five million, six hundred forty-nine thousand, three hundred sixty-seven".