3804202981 has 2 divisors, whose sum is σ = 3804202982. Its totient is φ = 3804202980.

The previous prime is 3804202973. The next prime is 3804203017. The reversal of 3804202981 is 1892024083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3644053956 + 160149025 = 60366^2 + 12655^2 .

It is a cyclic number.

It is not a de Polignac number, because 3804202981 - 2³ = 3804202973 is a prime.

It is a super-2 number, since 2×3804202981² = 28943920641298572722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3804202981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3804202901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902101490 + 1902101491.

It is an arithmetic number, because the mean of its divisors is an integer number (1902101491).

Almost surely, 2^3804202981 is an apocalyptic number.

It is an amenable number.

3804202981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3804202981 is an equidigital number, since it uses as much as digits as its factorization.

3804202981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 3804202981 is about 61678.2212859612. The cubic root of 3804202981 is about 1561.0658644252.

The spelling of 3804202981 in words is "three billion, eight hundred four million, two hundred two thousand, nine hundred eighty-one".