406551799 has 4 divisors (see below), whose sum is σ = 416006536. Its totient is φ = 397097064.

The previous prime is 406551757. The next prime is 406551839. The reversal of 406551799 is 997155604.

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 406551799 - 2²³ = 398163191 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 (406551709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4727304 + ... + 4727389.

It is an arithmetic number, because the mean of its divisors is an integer number (104001634).

Almost surely, 2^406551799 is an apocalyptic number.

406551799 is a deficient number, since it is larger than the sum of its proper divisors (9454737).

406551799 is an equidigital number, since it uses as much as digits as its factorization.

406551799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454736.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 406551799 is about 20163.1296925849. The cubic root of 406551799 is about 740.8073723924.

The spelling of 406551799 in words is "four hundred six million, five hundred fifty-one thousand, seven hundred ninety-nine".