3898147 has 4 divisors (see below), whose sum is σ = 4252536. Its totient is φ = 3543760.

The previous prime is 3898123. The next prime is 3898163. The reversal of 3898147 is 7418983.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3898147 - 2⁷ = 3898019 is a prime.

It is a super-3 number, since 3×3898147³ (a number of 21 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 177178 + ... + 177199.

It is an arithmetic number, because the mean of its divisors is an integer number (1063134).

Almost surely, 2^3898147 is an apocalyptic number.

3898147 is a deficient number, since it is larger than the sum of its proper divisors (354389).

3898147 is a wasteful number, since it uses less digits than its factorization.

3898147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354388.

The product of its digits is 48384, while the sum is 40.

The square root of 3898147 is about 1974.3725585613. The cubic root of 3898147 is about 157.3811583560.

The spelling of 3898147 in words is "three million, eight hundred ninety-eight thousand, one hundred forty-seven".