3898778983 has 8 divisors (see below), whose sum is σ = 4253667840. Its totient is φ = 3543965880.

The previous prime is 3898778957. The next prime is 3898778999.

3898778983 is nontrivially palindromic in base 10.

3898778983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3898778983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898778903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175728 + ... + 196666.

It is an arithmetic number, because the mean of its divisors is an integer number (531708480).

Almost surely, 2^3898778983 is an apocalyptic number.

3898778983 is a deficient number, since it is larger than the sum of its proper divisors (354888857).

3898778983 is a wasteful number, since it uses less digits than its factorization.

3898778983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37877.

The product of its digits is 146313216, while the sum is 70.

The square root of 3898778983 is about 62440.2032587979. The cubic root of 3898778983 is about 1573.8966298153.

The spelling of 3898778983 in words is "three billion, eight hundred ninety-eight million, seven hundred seventy-eight thousand, nine hundred eighty-three".