706222720 has 64 divisors (see below), whose sum is σ = 1929513600. Its totient is φ = 242131968.

The previous prime is 706222717. The next prime is 706222733. The reversal of 706222720 is 27222607.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74340 + ... + 83299.

It is an arithmetic number, because the mean of its divisors is an integer number (30148650).

Almost surely, 2^706222720 is an apocalyptic number.

706222720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

706222720 is an abundant number, since it is smaller than the sum of its proper divisors (1223290880).

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

706222720 is a wasteful number, since it uses less digits than its factorization.

706222720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665 (or 157653 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 706222720 is about 26574.8512695744. The cubic root of 706222720 is about 890.5272808679.

The spelling of 706222720 in words is "seven hundred six million, two hundred twenty-two thousand, seven hundred twenty".