406304791 has 4 divisors (see below), whose sum is σ = 406961800. Its totient is φ = 405647784.

The previous prime is 406304783. The next prime is 406304827. The reversal of 406304791 is 197403604.

It is a happy number.

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 406304791 - 2³ = 406304783 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 (406304891) 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, 327576 + ... + 328813.

It is an arithmetic number, because the mean of its divisors is an integer number (101740450).

Almost surely, 2^406304791 is an apocalyptic number.

406304791 is a deficient number, since it is larger than the sum of its proper divisors (657009).

406304791 is an equidigital number, since it uses as much as digits as its factorization.

406304791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657008.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 406304791 is about 20157.0035223492. The cubic root of 406304791 is about 740.6573116301.

The spelling of 406304791 in words is "four hundred six million, three hundred four thousand, seven hundred ninety-one".