406907983 has 4 divisors (see below), whose sum is σ = 407400840. Its totient is φ = 406415128.

The previous prime is 406907959. The next prime is 406908001. The reversal of 406907983 is 389709604.

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 406907983 - 2¹³ = 406899791 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 (406907923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245188 + ... + 246841.

It is an arithmetic number, because the mean of its divisors is an integer number (101850210).

Almost surely, 2^406907983 is an apocalyptic number.

406907983 is a deficient number, since it is larger than the sum of its proper divisors (492857).

406907983 is an equidigital number, since it uses as much as digits as its factorization.

406907983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492856.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 406907983 is about 20171.9603162410. The cubic root of 406907983 is about 741.0236521001.

The spelling of 406907983 in words is "four hundred six million, nine hundred seven thousand, nine hundred eighty-three".