406227803 has 4 divisors (see below), whose sum is σ = 413113080. Its totient is φ = 399342528.

The previous prime is 406227797. The next prime is 406227823. The reversal of 406227803 is 308722604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406227803 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 406227803.

It is not an unprimeable number, because it can be changed into a prime (406227823) 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, 3442550 + ... + 3442667.

It is an arithmetic number, because the mean of its divisors is an integer number (103278270).

Almost surely, 2^406227803 is an apocalyptic number.

406227803 is a deficient number, since it is larger than the sum of its proper divisors (6885277).

406227803 is an equidigital number, since it uses as much as digits as its factorization.

406227803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6885276.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 406227803 is about 20155.0937234239. The cubic root of 406227803 is about 740.6105279279.

The spelling of 406227803 in words is "four hundred six million, two hundred twenty-seven thousand, eight hundred three".