3984236461 has 2 divisors, whose sum is σ = 3984236462. Its totient is φ = 3984236460.

The previous prime is 3984236447. The next prime is 3984236513. The reversal of 3984236461 is 1646324893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3274013961 + 710222500 = 57219^2 + 26650^2 .

It is a cyclic number.

It is not a de Polignac number, because 3984236461 - 2⁹ = 3984235949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3984236441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992118230 + 1992118231.

It is an arithmetic number, because the mean of its divisors is an integer number (1992118231).

Almost surely, 2^3984236461 is an apocalyptic number.

It is an amenable number.

3984236461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984236461 is an equidigital number, since it uses as much as digits as its factorization.

3984236461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 46.

The square root of 3984236461 is about 63120.8084628199. The cubic root of 3984236461 is about 1585.3130518395.

The spelling of 3984236461 in words is "three billion, nine hundred eighty-four million, two hundred thirty-six thousand, four hundred sixty-one".