3898157 has 8 divisors (see below), whose sum is σ = 4123392. Its totient is φ = 3679200.

The previous prime is 3898123. The next prime is 3898163. The reversal of 3898157 is 7518983.

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 3898157 - 2¹⁸ = 3636013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898177) 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, 263 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (515424).

Almost surely, 2^3898157 is an apocalyptic number.

It is an amenable number.

3898157 is a deficient number, since it is larger than the sum of its proper divisors (225235).

3898157 is a wasteful number, since it uses less digits than its factorization.

3898157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139.

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

The square root of 3898157 is about 1974.3750910098. The cubic root of 3898157 is about 157.3812929336.

The spelling of 3898157 in words is "three million, eight hundred ninety-eight thousand, one hundred fifty-seven".