3949401593 has 2 divisors, whose sum is σ = 3949401594. Its totient is φ = 3949401592.

The previous prime is 3949401559. The next prime is 3949401683. The reversal of 3949401593 is 3951049493.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3940449529 + 8952064 = 62773^2 + 2992^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949401593 - 2¹⁰ = 3949400569 is a prime.

It is not a weakly prime, because it can be changed into another prime (3949401293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974700796 + 1974700797.

It is an arithmetic number, because the mean of its divisors is an integer number (1974700797).

Almost surely, 2^3949401593 is an apocalyptic number.

It is an amenable number.

3949401593 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949401593 is an equidigital number, since it uses as much as digits as its factorization.

3949401593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 3949401593 is about 62844.2645990865. The cubic root of 3949401593 is about 1580.6792989141.

The spelling of 3949401593 in words is "three billion, nine hundred forty-nine million, four hundred one thousand, five hundred ninety-three".