400675673 has 4 divisors (see below), whose sum is σ = 400755108. Its totient is φ = 400596240.

The previous prime is 400675661. The next prime is 400675697. The reversal of 400675673 is 376576004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102353689 + 298321984 = 10117^2 + 17272^2 .

It is a cyclic number.

It is not a de Polignac number, because 400675673 - 2⁶ = 400675609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400675603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31598 + ... + 42423.

It is an arithmetic number, because the mean of its divisors is an integer number (100188777).

Almost surely, 2^400675673 is an apocalyptic number.

It is an amenable number.

400675673 is a deficient number, since it is larger than the sum of its proper divisors (79435).

400675673 is an equidigital number, since it uses as much as digits as its factorization.

400675673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79434.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 400675673 is about 20016.8846976746. The cubic root of 400675673 is about 737.2209331209.

The spelling of 400675673 in words is "four hundred million, six hundred seventy-five thousand, six hundred seventy-three".