406826783 has 16 divisors (see below), whose sum is σ = 472974336. Its totient is φ = 346225440.

The previous prime is 406826773. The next prime is 406826789. The reversal of 406826783 is 387628604.

It is not a de Polignac number, because 406826783 - 2⁸ = 406826527 is a prime.

It is a super-2 number, since 2×406826783² = 331016062732258178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406826789) 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 15 ways as a sum of consecutive naturals, for example, 5216 + ... + 28997.

It is an arithmetic number, because the mean of its divisors is an integer number (29560896).

Almost surely, 2^406826783 is an apocalyptic number.

406826783 is a deficient number, since it is larger than the sum of its proper divisors (66147553).

406826783 is a wasteful number, since it uses less digits than its factorization.

406826783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34294.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 406826783 is about 20169.9475210026. The cubic root of 406826783 is about 740.9743574799.

The spelling of 406826783 in words is "four hundred six million, eight hundred twenty-six thousand, seven hundred eighty-three".