3898635 has 16 divisors (see below), whose sum is σ = 6717984. Its totient is φ = 1919232.

The previous prime is 3898633. The next prime is 3898637. The reversal of 3898635 is 5368983.

It is an interprime number because it is at equal distance from previous prime (3898633) and next prime (3898637).

It is not a de Polignac number, because 3898635 - 2¹ = 3898633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3898633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9802 + ... + 10191.

It is an arithmetic number, because the mean of its divisors is an integer number (419874).

Almost surely, 2^3898635 is an apocalyptic number.

3898635 is a deficient number, since it is larger than the sum of its proper divisors (2819349).

3898635 is a wasteful number, since it uses less digits than its factorization.

3898635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20014.

The product of its digits is 155520, while the sum is 42.

The square root of 3898635 is about 1974.4961382591. The cubic root of 3898635 is about 157.3877254762.

The spelling of 3898635 in words is "three million, eight hundred ninety-eight thousand, six hundred thirty-five".