3987423406 has 32 divisors (see below), whose sum is σ = 6426864000. Its totient is φ = 1848717312.

The previous prime is 3987423331. The next prime is 3987423413. The reversal of 3987423406 is 6043247893.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1527030 + ... + 1529638.

It is an arithmetic number, because the mean of its divisors is an integer number (200839500).

Almost surely, 2^3987423406 is an apocalyptic number.

3987423406 is a deficient number, since it is larger than the sum of its proper divisors (2439440594).

3987423406 is a wasteful number, since it uses less digits than its factorization.

3987423406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 3987423406 is about 63146.0482215633. The cubic root of 3987423406 is about 1585.7356304237.

The spelling of 3987423406 in words is "three billion, nine hundred eighty-seven million, four hundred twenty-three thousand, four hundred six".