398878836983 has 16 divisors (see below), whose sum is σ = 460887356160. Its totient is φ = 341175369600.

The previous prime is 398878836977. The next prime is 398878837009. The reversal of 398878836983 is 389638878893.

It is a cyclic number.

It is not a de Polignac number, because 398878836983 - 2¹² = 398878832887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 398878836898 and 398878836907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398878836913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229388 + ... + 922158.

It is an arithmetic number, because the mean of its divisors is an integer number (28805459760).

Almost surely, 2^398878836983 is an apocalyptic number.

398878836983 is a deficient number, since it is larger than the sum of its proper divisors (62008519177).

398878836983 is a wasteful number, since it uses less digits than its factorization.

398878836983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695878.

The product of its digits is 3009871872, while the sum is 80.

The spelling of 398878836983 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, eight hundred thirty-six thousand, nine hundred eighty-three".