3616978433 has 2 divisors, whose sum is σ = 3616978434. Its totient is φ = 3616978432.

The previous prime is 3616978381. The next prime is 3616978457. The reversal of 3616978433 is 3348796163.

It is a happy number.

3616978433 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2200735744 + 1416242689 = 46912^2 + 37633^2 .

It is a cyclic number.

It is not a de Polignac number, because 3616978433 - 2⁸ = 3616978177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3616978493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1808489216 + 1808489217.

It is an arithmetic number, because the mean of its divisors is an integer number (1808489217).

Almost surely, 2^3616978433 is an apocalyptic number.

It is an amenable number.

3616978433 is a deficient number, since it is larger than the sum of its proper divisors (1).

3616978433 is an equidigital number, since it uses as much as digits as its factorization.

3616978433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 50.

The square root of 3616978433 is about 60141.3205126060. The cubic root of 3616978433 is about 1535.0244819913.

The spelling of 3616978433 in words is "three billion, six hundred sixteen million, nine hundred seventy-eight thousand, four hundred thirty-three".