3869625 has 32 divisors (see below), whose sum is σ = 6829056. Its totient is φ = 1939200.

The previous prime is 3869623. The next prime is 3869627. The reversal of 3869625 is 5269683.

3869625 = T₄₆₀ + T₄₆₁ + ... + T₄₉₃.

It is an interprime number because it is at equal distance from previous prime (3869623) and next prime (3869627).

It is not a de Polignac number, because 3869625 - 2¹ = 3869623 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 3¹³ + 8⁷ + 6³ + 9² + 6⁶ + 2¹⁷ + 5³ .

It is not an unprimeable number, because it can be changed into a prime (3869623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6072 + ... + 6678.

It is an arithmetic number, because the mean of its divisors is an integer number (213408).

Almost surely, 2^3869625 is an apocalyptic number.

It is an amenable number.

3869625 is a deficient number, since it is larger than the sum of its proper divisors (2959431).

3869625 is a wasteful number, since it uses less digits than its factorization.

3869625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 632 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 3869625 is about 1967.1362433751. The cubic root of 3869625 is about 156.9963756990.

It can be divided in two parts, 386 and 9625, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 3869625 in words is "three million, eight hundred sixty-nine thousand, six hundred twenty-five".