3687875691 has 8 divisors (see below), whose sum is σ = 4922752464. Its totient is φ = 2455791360.

The previous prime is 3687875687. The next prime is 3687875717. The reversal of 3687875691 is 1965787863.

3687875691 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3687875691 - 2² = 3687875687 is a prime.

It is a super-2 number, since 2×3687875691² = 27200854224537454962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3687875621) 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, 695026 + ... + 700311.

It is an arithmetic number, because the mean of its divisors is an integer number (615344058).

Almost surely, 2^3687875691 is an apocalyptic number.

3687875691 is a deficient number, since it is larger than the sum of its proper divisors (1234876773).

3687875691 is a wasteful number, since it uses less digits than its factorization.

3687875691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396221.

The product of its digits is 15240960, while the sum is 60.

The square root of 3687875691 is about 60727.8823194091. The cubic root of 3687875691 is about 1544.9891169204.

The spelling of 3687875691 in words is "three billion, six hundred eighty-seven million, eight hundred seventy-five thousand, six hundred ninety-one".