398877625683 has 6 divisors (see below), whose sum is σ = 576156570444. Its totient is φ = 265918417116.

The previous prime is 398877625681. The next prime is 398877625711. The reversal of 398877625683 is 386526778893.

It is a happy number.

It is not a de Polignac number, because 398877625683 - 2¹ = 398877625681 is a prime.

It is a super-2 number, since 2×398877625683² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398877625681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22159868085 + ... + 22159868102.

It is an arithmetic number, because the mean of its divisors is an integer number (96026095074).

Almost surely, 2^398877625683 is an apocalyptic number.

398877625683 is a deficient number, since it is larger than the sum of its proper divisors (177278944761).

398877625683 is a wasteful number, since it uses less digits than its factorization.

398877625683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44319736193 (or 44319736190 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 72.

It can be divided in two parts, 39887 and 7625683, that added together give a triangular number (7665570 = T₃₉₁₅).

The spelling of 398877625683 in words is "three hundred ninety-eight billion, eight hundred seventy-seven million, six hundred twenty-five thousand, six hundred eighty-three".