726566746 has 8 divisors (see below), whose sum is σ = 1098432000. Its totient is φ = 360422748.

The previous prime is 726566717. The next prime is 726566773. The reversal of 726566746 is 647665627.

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

It is a self number, because there is not a number n which added to its sum of digits gives 726566746.

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, 1429996 + ... + 1430503.

It is an arithmetic number, because the mean of its divisors is an integer number (137304000).

Almost surely, 2^726566746 is an apocalyptic number.

726566746 is a deficient number, since it is larger than the sum of its proper divisors (371865254).

726566746 is a wasteful number, since it uses less digits than its factorization.

726566746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860628.

The product of its digits is 2540160, while the sum is 49.

The square root of 726566746 is about 26954.9020773588. The cubic root of 726566746 is about 898.9975447460.

The spelling of 726566746 in words is "seven hundred twenty-six million, five hundred sixty-six thousand, seven hundred forty-six".