407728703 has 4 divisors (see below), whose sum is σ = 407775168. Its totient is φ = 407682240.

The previous prime is 407728679. The next prime is 407728729. The reversal of 407728703 is 307827704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 407728703 - 2⁶ = 407728639 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 (407728003) 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, 5618 + ... + 29103.

It is an arithmetic number, because the mean of its divisors is an integer number (101943792).

Almost surely, 2^407728703 is an apocalyptic number.

407728703 is a deficient number, since it is larger than the sum of its proper divisors (46465).

407728703 is a wasteful number, since it uses less digits than its factorization.

407728703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46464.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 407728703 is about 20192.2931585296. The cubic root of 407728703 is about 741.5215242862.

Subtracting from 407728703 its reverse (307827704), we obtain a palindrome (99900999).

The spelling of 407728703 in words is "four hundred seven million, seven hundred twenty-eight thousand, seven hundred three".