3689157 has 4 divisors (see below), whose sum is σ = 4918880. Its totient is φ = 2459436.

The previous prime is 3689149. The next prime is 3689183. The reversal of 3689157 is 7519863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3689157 - 2³ = 3689149 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614857 + ... + 614862.

It is an arithmetic number, because the mean of its divisors is an integer number (1229720).

Almost surely, 2^3689157 is an apocalyptic number.

It is an amenable number.

3689157 is a deficient number, since it is larger than the sum of its proper divisors (1229723).

3689157 is a wasteful number, since it uses less digits than its factorization.

3689157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229722.

The product of its digits is 45360, while the sum is 39.

The square root of 3689157 is about 1920.7178345608. The cubic root of 3689157 is about 154.5168025630.

The spelling of 3689157 in words is "three million, six hundred eighty-nine thousand, one hundred fifty-seven".