706820646 has 32 divisors (see below), whose sum is σ = 1667708928. Its totient is φ = 195433920.

The previous prime is 706820629. The next prime is 706820651. The reversal of 706820646 is 646028607.

It is a super-2 number, since 2×706820646² = 999190851223714632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270135 + ... + 272738.

It is an arithmetic number, because the mean of its divisors is an integer number (52115904).

Almost surely, 2^706820646 is an apocalyptic number.

706820646 is an abundant number, since it is smaller than the sum of its proper divisors (960888282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

706820646 is a wasteful number, since it uses less digits than its factorization.

706820646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542916.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 706820646 is about 26586.0987359936. The cubic root of 706820646 is about 890.7785326794.

The spelling of 706820646 in words is "seven hundred six million, eight hundred twenty thousand, six hundred forty-six".