3898785 has 16 divisors (see below), whose sum is σ = 6805440. Its totient is φ = 1890240.

The previous prime is 3898771. The next prime is 3898841. The reversal of 3898785 is 5878983.

It is a happy number.

It is not a de Polignac number, because 3898785 - 2¹² = 3894689 is a prime.

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

3898785 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11650 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (425340).

Almost surely, 2^3898785 is an apocalyptic number.

It is an amenable number.

3898785 is a deficient number, since it is larger than the sum of its proper divisors (2906655).

3898785 is a wasteful number, since it uses less digits than its factorization.

3898785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23648.

The product of its digits is 483840, while the sum is 48.

The square root of 3898785 is about 1974.5341222678. The cubic root of 3898785 is about 157.3897439482.

The spelling of 3898785 in words is "three million, eight hundred ninety-eight thousand, seven hundred eighty-five".