398064673 has 8 divisors (see below), whose sum is σ = 421704360. Its totient is φ = 374449920.

The previous prime is 398064659. The next prime is 398064677. The reversal of 398064673 is 376460893.

It can be written as a sum of positive squares in 4 ways, for example, as 108826624 + 289238049 = 10432^2 + 17007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398064673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398064677) 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 7 ways as a sum of consecutive naturals, for example, 34183 + ... + 44323.

It is an arithmetic number, because the mean of its divisors is an integer number (52713045).

Almost surely, 2^398064673 is an apocalyptic number.

It is an amenable number.

398064673 is a deficient number, since it is larger than the sum of its proper divisors (23639687).

398064673 is a wasteful number, since it uses less digits than its factorization.

398064673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12467.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 398064673 is about 19951.5581597027. The cubic root of 398064673 is about 735.6160771629.

The spelling of 398064673 in words is "three hundred ninety-eight million, sixty-four thousand, six hundred seventy-three".