398472874843 has 4 divisors (see below), whose sum is σ = 399524254840. Its totient is φ = 397421494848.

The previous prime is 398472874771. The next prime is 398472874859. The reversal of 398472874843 is 348478274893.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398472874843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398472874243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525689430 + ... + 525690187.

It is an arithmetic number, because the mean of its divisors is an integer number (99881063710).

Almost surely, 2^398472874843 is an apocalyptic number.

398472874843 is a deficient number, since it is larger than the sum of its proper divisors (1051379997).

398472874843 is a wasteful number, since it uses less digits than its factorization.

398472874843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051379996.

The product of its digits is 260112384, while the sum is 67.

The spelling of 398472874843 in words is "three hundred ninety-eight billion, four hundred seventy-two million, eight hundred seventy-four thousand, eight hundred forty-three".