706394999 has 4 divisors (see below), whose sum is σ = 747947664. Its totient is φ = 664842336.

The previous prime is 706394959. The next prime is 706395029. The reversal of 706394999 is 999493607.

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 706394999 - 2²⁰ = 705346423 is a prime.

It is a super-2 number, since 2×706394999² = 997987789224420002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706394959) 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, 20776307 + ... + 20776340.

It is an arithmetic number, because the mean of its divisors is an integer number (186986916).

Almost surely, 2^706394999 is an apocalyptic number.

706394999 is a deficient number, since it is larger than the sum of its proper divisors (41552665).

706394999 is a wasteful number, since it uses less digits than its factorization.

706394999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41552664.

The product of its (nonzero) digits is 3306744, while the sum is 56.

The square root of 706394999 is about 26578.0924635309. The cubic root of 706394999 is about 890.5996879955.

The spelling of 706394999 in words is "seven hundred six million, three hundred ninety-four thousand, nine hundred ninety-nine".