3898838 has 32 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 1728864.

The previous prime is 3898771. The next prime is 3898841. The reversal of 3898838 is 8388983.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 3898792 and 3898801.

It is a congruent 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, 66053 + ... + 66111.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

Almost surely, 2^3898838 is an apocalyptic number.

3898838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3898838 is a deficient number, since it is larger than the sum of its proper divisors (2667562).

3898838 is a wasteful number, since it uses less digits than its factorization.

3898838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164.

The product of its digits is 331776, while the sum is 47.

The square root of 3898838 is about 1974.5475431096. The cubic root of 3898838 is about 157.3904571292.

It can be divided in two parts, 38988 and 38, that multiplied together give a cube (1481544 = 114³).

The spelling of 3898838 in words is "three million, eight hundred ninety-eight thousand, eight hundred thirty-eight".