3898456 has 8 divisors (see below), whose sum is σ = 7309620. Its totient is φ = 1949224.

The previous prime is 3898451. The next prime is 3898459. The reversal of 3898456 is 6548983.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243646 + ... + 243661.

Almost surely, 2^3898456 is an apocalyptic number.

It is an amenable number.

3898456 is a deficient number, since it is larger than the sum of its proper divisors (3411164).

3898456 is a wasteful number, since it uses less digits than its factorization.

3898456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487313 (or 487309 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 3898456 is about 1974.4508097190. The cubic root of 3898456 is about 157.3853166986.

The spelling of 3898456 in words is "three million, eight hundred ninety-eight thousand, four hundred fifty-six".