3854638 has 4 divisors (see below), whose sum is σ = 5781960. Its totient is φ = 1927318.

The previous prime is 3854629. The next prime is 3854671. The reversal of 3854638 is 8364583.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×3854638² = 29716468222088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3854597 and 3854606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 963658 + ... + 963661.

It is an arithmetic number, because the mean of its divisors is an integer number (1445490).

Almost surely, 2^3854638 is an apocalyptic number.

3854638 is a deficient number, since it is larger than the sum of its proper divisors (1927322).

3854638 is a wasteful number, since it uses less digits than its factorization.

3854638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927321.

The product of its digits is 69120, while the sum is 37.

The square root of 3854638 is about 1963.3232031431. The cubic root of 3854638 is about 156.7934319319.

The spelling of 3854638 in words is "three million, eight hundred fifty-four thousand, six hundred thirty-eight".