3987217562 has 16 divisors (see below), whose sum is σ = 5999547840. Its totient is φ = 1987378848.

The previous prime is 3987217561. The next prime is 3987217571. The reversal of 3987217562 is 2657127893.

3987217562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3987217562.

It is not an unprimeable number, because it can be changed into a prime (3987217561) 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, 1056014 + ... + 1059782.

It is an arithmetic number, because the mean of its divisors is an integer number (374971740).

Almost surely, 2^3987217562 is an apocalyptic number.

3987217562 is a deficient number, since it is larger than the sum of its proper divisors (2012330278).

3987217562 is a wasteful number, since it uses less digits than its factorization.

3987217562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285.

The product of its digits is 1270080, while the sum is 50.

The square root of 3987217562 is about 63144.4182964734. The cubic root of 3987217562 is about 1585.7083429794.

The spelling of 3987217562 in words is "three billion, nine hundred eighty-seven million, two hundred seventeen thousand, five hundred sixty-two".