398837547673 has 4 divisors (see below), whose sum is σ = 404790346960. Its totient is φ = 392884748388.

The previous prime is 398837547671. The next prime is 398837547677. The reversal of 398837547673 is 376745738893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 376745738893 = 482413 ⋅780961.

It is a cyclic number.

It is not a de Polignac number, because 398837547673 - 2¹ = 398837547671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398837547671) 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, 2976399543 + ... + 2976399676.

It is an arithmetic number, because the mean of its divisors is an integer number (101197586740).

Almost surely, 2^398837547673 is an apocalyptic number.

It is an amenable number.

398837547673 is a deficient number, since it is larger than the sum of its proper divisors (5952799287).

398837547673 is an equidigital number, since it uses as much as digits as its factorization.

398837547673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952799286.

The product of its digits is 640120320, while the sum is 70.

The spelling of 398837547673 in words is "three hundred ninety-eight billion, eight hundred thirty-seven million, five hundred forty-seven thousand, six hundred seventy-three".