728950207 has 4 divisors (see below), whose sum is σ = 729119440. Its totient is φ = 728780976.

The previous prime is 728950199. The next prime is 728950217. The reversal of 728950207 is 702059827.

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 728950207 - 2³ = 728950199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728950207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728950217) 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, 77982 + ... + 86827.

It is an arithmetic number, because the mean of its divisors is an integer number (182279860).

Almost surely, 2^728950207 is an apocalyptic number.

728950207 is a deficient number, since it is larger than the sum of its proper divisors (169233).

728950207 is a wasteful number, since it uses less digits than its factorization.

728950207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169232.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 728950207 is about 26999.0778916614. The cubic root of 728950207 is about 899.9795085869.

The spelling of 728950207 in words is "seven hundred twenty-eight million, nine hundred fifty thousand, two hundred seven".