3987255600 has 90 divisors (see below), whose sum is σ = 13836896996. Its totient is φ = 1063267200.

The previous prime is 3987255581. The next prime is 3987255631. The reversal of 3987255600 is 65527893.

It is a happy number.

3987255600 is a `hidden beast` number, since 3 + 9 + 87 + 2 + 5 + 560 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 550186 + ... + 557385.

Almost surely, 2^3987255600 is an apocalyptic number.

3987255600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3987255600 is an abundant number, since it is smaller than the sum of its proper divisors (9849641396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3987255600 is a wasteful number, since it uses less digits than its factorization.

3987255600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107595 (or 1107581 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 3987255600 is about 63144.7194941905. The cubic root of 3987255600 is about 1585.7133855086.

The spelling of 3987255600 in words is "three billion, nine hundred eighty-seven million, two hundred fifty-five thousand, six hundred".