3984014821 has 8 divisors (see below), whose sum is σ = 4219752024. Its totient is φ = 3748431360.

The previous prime is 3984014777. The next prime is 3984014861. The reversal of 3984014821 is 1284104893.

It can be written as a sum of positive squares in 4 ways, for example, as 982509025 + 3001505796 = 31345^2 + 54786^2 .

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-3984014821 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 (3984014861) 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, 17241 + ... + 90913.

It is an arithmetic number, because the mean of its divisors is an integer number (527469003).

Almost surely, 2^3984014821 is an apocalyptic number.

It is an amenable number.

3984014821 is a deficient number, since it is larger than the sum of its proper divisors (235737203).

3984014821 is a wasteful number, since it uses less digits than its factorization.

3984014821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76871.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 3984014821 is about 63119.0527574678. The cubic root of 3984014821 is about 1585.2836547138.

The spelling of 3984014821 in words is "three billion, nine hundred eighty-four million, fourteen thousand, eight hundred twenty-one".