726220207 has 4 divisors (see below), whose sum is σ = 729983200. Its totient is φ = 722457216.

The previous prime is 726220181. The next prime is 726220217. The reversal of 726220207 is 702022627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 726220207 - 2¹⁵ = 726187439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726220217) 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, 1881207 + ... + 1881592.

It is an arithmetic number, because the mean of its divisors is an integer number (182495800).

Almost surely, 2^726220207 is an apocalyptic number.

726220207 is a deficient number, since it is larger than the sum of its proper divisors (3762993).

726220207 is a wasteful number, since it uses less digits than its factorization.

726220207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762992.

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

The square root of 726220207 is about 26948.4731849506. The cubic root of 726220207 is about 898.8545951570.

The spelling of 726220207 in words is "seven hundred twenty-six million, two hundred twenty thousand, two hundred seven".