3998084858 has 4 divisors (see below), whose sum is σ = 5997127290. Its totient is φ = 1999042428.

The previous prime is 3998084843. The next prime is 3998084873. The reversal of 3998084858 is 8584808993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8584808993 = 113 ⋅75971761.

It is an interprime number because it is at equal distance from previous prime (3998084843) and next prime (3998084873).

It can be written as a sum of positive squares in only one way, i.e., 2593559329 + 1404525529 = 50927^2 + 37477^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3998084858.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999521213 + ... + 999521216.

Almost surely, 2^3998084858 is an apocalyptic number.

3998084858 is a deficient number, since it is larger than the sum of its proper divisors (1999042432).

3998084858 is a wasteful number, since it uses less digits than its factorization.

3998084858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999042431.

The product of its (nonzero) digits is 19906560, while the sum is 62.

The square root of 3998084858 is about 63230.4108637608. The cubic root of 3998084858 is about 1587.1476699899.

The spelling of 3998084858 in words is "three billion, nine hundred ninety-eight million, eighty-four thousand, eight hundred fifty-eight".