706993663 has 4 divisors (see below), whose sum is σ = 707340088. Its totient is φ = 706647240.

The previous prime is 706993643. The next prime is 706993699. The reversal of 706993663 is 366399607.

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 706993663 - 2⁵ = 706993631 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 (706993643) 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, 170133 + ... + 174238.

It is an arithmetic number, because the mean of its divisors is an integer number (176835022).

Almost surely, 2^706993663 is an apocalyptic number.

706993663 is a deficient number, since it is larger than the sum of its proper divisors (346425).

706993663 is a wasteful number, since it uses less digits than its factorization.

706993663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346424.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The square root of 706993663 is about 26589.3524366428. The cubic root of 706993663 is about 890.8512089454.

The spelling of 706993663 in words is "seven hundred six million, nine hundred ninety-three thousand, six hundred sixty-three".