3728916293 has 2 divisors, whose sum is σ = 3728916294. Its totient is φ = 3728916292.

The previous prime is 3728916241. The next prime is 3728916299. The reversal of 3728916293 is 3926198273.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2870602084 + 858314209 = 53578^2 + 29297^2 .

It is an emirp because it is prime and its reverse (3926198273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3728916293 - 2⁶ = 3728916229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3728916299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864458146 + 1864458147.

It is an arithmetic number, because the mean of its divisors is an integer number (1864458147).

Almost surely, 2^3728916293 is an apocalyptic number.

It is an amenable number.

3728916293 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728916293 is an equidigital number, since it uses as much as digits as its factorization.

3728916293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 3728916293 is about 61064.8531726721. The cubic root of 3728916293 is about 1550.6991355924.

The spelling of 3728916293 in words is "three billion, seven hundred twenty-eight million, nine hundred sixteen thousand, two hundred ninety-three".