722487706 has 8 divisors (see below), whose sum is σ = 1097449920. Its totient is φ = 356671068.

The previous prime is 722487683. The next prime is 722487751. The reversal of 722487706 is 607784227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×722487706² = 1043976970642284872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2286196 + ... + 2286511.

It is an arithmetic number, because the mean of its divisors is an integer number (137181240).

Almost surely, 2^722487706 is an apocalyptic number.

722487706 is a deficient number, since it is larger than the sum of its proper divisors (374962214).

722487706 is a wasteful number, since it uses less digits than its factorization.

722487706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572788.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 722487706 is about 26879.1314219786. The cubic root of 722487706 is about 897.3120235946.

The spelling of 722487706 in words is "seven hundred twenty-two million, four hundred eighty-seven thousand, seven hundred six".