3886138 has 4 divisors (see below), whose sum is σ = 5829210. Its totient is φ = 1943068.

The previous prime is 3886121. The next prime is 3886151. The reversal of 3886138 is 8316883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8316883 = 79 ⋅105277.

It can be written as a sum of positive squares in only one way, i.e., 3775249 + 110889 = 1943^2 + 333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3886097 and 3886106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971533 + ... + 971536.

Almost surely, 2^3886138 is an apocalyptic number.

3886138 is a deficient number, since it is larger than the sum of its proper divisors (1943072).

3886138 is a wasteful number, since it uses less digits than its factorization.

3886138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943071.

The product of its digits is 27648, while the sum is 37.

The square root of 3886138 is about 1971.3289933443. The cubic root of 3886138 is about 157.2193776871.

The spelling of 3886138 in words is "three million, eight hundred eighty-six thousand, one hundred thirty-eight".