3886629 has 4 divisors (see below), whose sum is σ = 5182176. Its totient is φ = 2591084.

The previous prime is 3886601. The next prime is 3886637. The reversal of 3886629 is 9266883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9266883 = 3 ⋅3088961.

It is a cyclic number.

It is not a de Polignac number, because 3886629 - 2⁹ = 3886117 is a prime.

It is a D-number.

3886629 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3886679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647769 + ... + 647774.

It is an arithmetic number, because the mean of its divisors is an integer number (1295544).

Almost surely, 2^3886629 is an apocalyptic number.

It is an amenable number.

3886629 is a deficient number, since it is larger than the sum of its proper divisors (1295547).

3886629 is a wasteful number, since it uses less digits than its factorization.

3886629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295546.

The product of its digits is 124416, while the sum is 42.

The square root of 3886629 is about 1971.4535246868. The cubic root of 3886629 is about 157.2259987818.

The spelling of 3886629 in words is "three million, eight hundred eighty-six thousand, six hundred twenty-nine".