3896638 has 16 divisors (see below), whose sum is σ = 6390144. Its totient is φ = 1774080.

The previous prime is 3896609. The next prime is 3896657. The reversal of 3896638 is 8366983.

It is a super-4 number, since 4×3896638⁴ (a number of 27 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3896594 and 3896603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795 + ... + 2902.

It is an arithmetic number, because the mean of its divisors is an integer number (399384).

Almost surely, 2^3896638 is an apocalyptic number.

3896638 is a deficient number, since it is larger than the sum of its proper divisors (2493506).

3896638 is a wasteful number, since it uses less digits than its factorization.

3896638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its digits is 186624, while the sum is 43.

The square root of 3896638 is about 1973.9903748499. The cubic root of 3896638 is about 157.3608479521.

The spelling of 3896638 in words is "three million, eight hundred ninety-six thousand, six hundred thirty-eight".