3987358787 has 8 divisors (see below), whose sum is σ = 4203558912. Its totient is φ = 3776632200.

The previous prime is 3987358783. The next prime is 3987358819. The reversal of 3987358787 is 7878537893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3987358787 - 2² = 3987358783 is a prime.

It is a super-2 number, since 2×3987358787² = 31798060192532222738, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (3987358783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366889 + ... + 1369802.

It is an arithmetic number, because the mean of its divisors is an integer number (525444864).

Almost surely, 2^3987358787 is an apocalyptic number.

3987358787 is a deficient number, since it is larger than the sum of its proper divisors (216200125).

3987358787 is a wasteful number, since it uses less digits than its factorization.

3987358787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736769.

The product of its digits is 71124480, while the sum is 65.

The square root of 3987358787 is about 63145.5365564345. The cubic root of 3987358787 is about 1585.7270643905.

The spelling of 3987358787 in words is "three billion, nine hundred eighty-seven million, three hundred fifty-eight thousand, seven hundred eighty-seven".