3688157 has 8 divisors (see below), whose sum is σ = 4043520. Its totient is φ = 3336160.

The previous prime is 3688151. The next prime is 3688171. The reversal of 3688157 is 7518863.

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 3688157 - 2⁴ = 3688141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3688157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688151) 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, 1844 + ... + 3282.

It is an arithmetic number, because the mean of its divisors is an integer number (505440).

Almost surely, 2^3688157 is an apocalyptic number.

It is an amenable number.

3688157 is a deficient number, since it is larger than the sum of its proper divisors (355363).

3688157 is a wasteful number, since it uses less digits than its factorization.

3688157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683.

The product of its digits is 40320, while the sum is 38.

The square root of 3688157 is about 1920.4574975771. The cubic root of 3688157 is about 154.5028399544.

The spelling of 3688157 in words is "three million, six hundred eighty-eight thousand, one hundred fifty-seven".