3898725 has 24 divisors (see below), whose sum is σ = 6502560. Its totient is φ = 2061120.

The previous prime is 3898717. The next prime is 3898747. The reversal of 3898725 is 5278983.

It is not a de Polignac number, because 3898725 - 2³ = 3898717 is a prime.

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

It is a Curzon number.

3898725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16911 + ... + 17139.

It is an arithmetic number, because the mean of its divisors is an integer number (270940).

Almost surely, 2^3898725 is an apocalyptic number.

It is an amenable number.

3898725 is a deficient number, since it is larger than the sum of its proper divisors (2603835).

3898725 is a wasteful number, since it uses less digits than its factorization.

3898725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 464 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 3898725 is about 1974.5189287520. The cubic root of 3898725 is about 157.3889365656.

The spelling of 3898725 in words is "three million, eight hundred ninety-eight thousand, seven hundred twenty-five".