3990357837 has 20 divisors (see below), whose sum is σ = 6220077600. Its totient is φ = 2544574824.

The previous prime is 3990357821. The next prime is 3990357853. The reversal of 3990357837 is 7387530993.

It is a happy number.

3990357837 is a `hidden beast` number, since 39 + 9 + 0 + 3 + 578 + 37 = 666.

It is an interprime number because it is at equal distance from previous prime (3990357821) and next prime (3990357853).

It is not a de Polignac number, because 3990357837 - 2⁴ = 3990357821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990357037) 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 19 ways as a sum of consecutive naturals, for example, 1069087 + ... + 1072812.

It is an arithmetic number, because the mean of its divisors is an integer number (311003880).

Almost surely, 2^3990357837 is an apocalyptic number.

It is an amenable number.

3990357837 is a deficient number, since it is larger than the sum of its proper divisors (2229719763).

3990357837 is a wasteful number, since it uses less digits than its factorization.

3990357837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141934 (or 2141925 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 3990357837 is about 63169.2792186202. The cubic root of 3990357837 is about 1586.1245274058.

The spelling of 3990357837 in words is "three billion, nine hundred ninety million, three hundred fifty-seven thousand, eight hundred thirty-seven".