398878098083 has 4 divisors (see below), whose sum is σ = 404831502600. Its totient is φ = 392924693568.

The previous prime is 398878098037. The next prime is 398878098097. The reversal of 398878098083 is 380890878893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380890878893 = 7 ⋅54412982699.

It is a cyclic number.

It is not a de Polignac number, because 398878098083 - 2¹² = 398878093987 is a prime.

It is a super-2 number, since 2×398878098083² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 398878097998 and 398878098016.

It is not an unprimeable number, because it can be changed into a prime (398878098013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976702158 + ... + 2976702291.

It is an arithmetic number, because the mean of its divisors is an integer number (101207875650).

Almost surely, 2^398878098083 is an apocalyptic number.

398878098083 is a deficient number, since it is larger than the sum of its proper divisors (5953404517).

398878098083 is an equidigital number, since it uses as much as digits as its factorization.

398878098083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953404516.

The product of its (nonzero) digits is 167215104, while the sum is 71.

The spelling of 398878098083 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, ninety-eight thousand, eighty-three".