3944799531 has 12 divisors (see below), whose sum is σ = 5794621560. Its totient is φ = 2585292000.

The previous prime is 3944799503. The next prime is 3944799541. The reversal of 3944799531 is 1359974493.

It is a happy number.

3944799531 is a `hidden beast` number, since 39 + 4 + 4 + 79 + 9 + 531 = 666.

It is not a de Polignac number, because 3944799531 - 2⁵ = 3944799499 is a prime.

It is a super-2 number, since 2×3944799531² = 31122886679555639922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3944799541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3713970 + ... + 3715031.

It is an arithmetic number, because the mean of its divisors is an integer number (482885130).

Almost surely, 2^3944799531 is an apocalyptic number.

3944799531 is a deficient number, since it is larger than the sum of its proper divisors (1849822029).

3944799531 is a wasteful number, since it uses less digits than its factorization.

3944799531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7429066 (or 7429063 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 3944799531 is about 62807.6391134072. The cubic root of 3944799531 is about 1580.0650951923.

The spelling of 3944799531 in words is "three billion, nine hundred forty-four million, seven hundred ninety-nine thousand, five hundred thirty-one".