3861526 has 4 divisors (see below), whose sum is σ = 5792292. Its totient is φ = 1930762.

The previous prime is 3861521. The next prime is 3861547. The reversal of 3861526 is 6251683.

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

It is a super-2 number, since 2×3861526² = 29822766097352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965380 + ... + 965383.

It is an arithmetic number, because the mean of its divisors is an integer number (1448073).

Almost surely, 2^3861526 is an apocalyptic number.

3861526 is a deficient number, since it is larger than the sum of its proper divisors (1930766).

3861526 is a wasteful number, since it uses less digits than its factorization.

3861526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930765.

The product of its digits is 8640, while the sum is 31.

The square root of 3861526 is about 1965.0765888382. The cubic root of 3861526 is about 156.8867697502.

The spelling of 3861526 in words is "three million, eight hundred sixty-one thousand, five hundred twenty-six".