720946 has 8 divisors (see below), whose sum is σ = 1085040. Its totient is φ = 359268.

The previous prime is 720943. The next prime is 720947. The reversal of 720946 is 649027.

720946 is nontrivially palindromic in base 8.

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

It is not an unprimeable number, because it can be changed into a prime (720943) 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, 765 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (135630).

2⁷²⁰⁹⁴⁶ is an apocalyptic number.

720946 is a deficient number, since it is larger than the sum of its proper divisors (364094).

720946 is a wasteful number, since it uses less digits than its factorization.

720946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 720946 is about 849.0853902877. The cubic root of 720946 is about 89.6673315380.

The spelling of 720946 in words is "seven hundred twenty thousand, nine hundred forty-six".