3988157 has 8 divisors (see below), whose sum is σ = 4252800. Its totient is φ = 3729024.

The previous prime is 3988151. The next prime is 3988213. The reversal of 3988157 is 7518893.

It is a happy number.

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 3988157 - 2⁶ = 3988093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988151) 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, 173 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (531600).

Almost surely, 2^3988157 is an apocalyptic number.

It is an amenable number.

3988157 is a deficient number, since it is larger than the sum of its proper divisors (264643).

3988157 is a wasteful number, since it uses less digits than its factorization.

3988157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755.

The product of its digits is 60480, while the sum is 41.

The square root of 3988157 is about 1997.0370552396. The cubic root of 3988157 is about 158.5832870729.

The spelling of 3988157 in words is "three million, nine hundred eighty-eight thousand, one hundred fifty-seven".