3722686587 has 64 divisors (see below), whose sum is σ = 6168768000. Its totient is φ = 2208415104.

The previous prime is 3722686573. The next prime is 3722686603. The reversal of 3722686587 is 7856862273.

3722686587 is a `hidden beast` number, since 37 + 2 + 26 + 8 + 6 + 587 = 666.

It is not a de Polignac number, because 3722686587 - 2⁶ = 3722686523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3722686567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 547068 + ... + 553830.

It is an arithmetic number, because the mean of its divisors is an integer number (96387000).

Almost surely, 2^3722686587 is an apocalyptic number.

3722686587 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3722686587 is a deficient number, since it is larger than the sum of its proper divisors (2446081413).

3722686587 is a wasteful number, since it uses less digits than its factorization.

3722686587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857 (or 6851 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 3722686587 is about 61013.8229174340. The cubic root of 3722686587 is about 1549.8350968514.

It can be divided in two parts, 3722686 and 587, that added together give a palindrome (3723273).

The spelling of 3722686587 in words is "three billion, seven hundred twenty-two million, six hundred eighty-six thousand, five hundred eighty-seven".