3955281399 has 12 divisors (see below), whose sum is σ = 5722077816. Its totient is φ = 2632749552.

The previous prime is 3955281383. The next prime is 3955281469. The reversal of 3955281399 is 9931825593.

3955281399 is a `hidden beast` number, since 3 + 9 + 552 + 81 + 3 + 9 + 9 = 666.

It is not a de Polignac number, because 3955281399 - 2⁴ = 3955281383 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3955281329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335952 + ... + 347525.

It is an arithmetic number, because the mean of its divisors is an integer number (476839818).

Almost surely, 2^3955281399 is an apocalyptic number.

3955281399 is a deficient number, since it is larger than the sum of its proper divisors (1766796417).

3955281399 is a wasteful number, since it uses less digits than its factorization.

3955281399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684126 (or 684123 counting only the distinct ones).

The product of its digits is 2624400, while the sum is 54.

The square root of 3955281399 is about 62891.0279690196. The cubic root of 3955281399 is about 1581.4633399831.

The spelling of 3955281399 in words is "three billion, nine hundred fifty-five million, two hundred eighty-one thousand, three hundred ninety-nine".