3625869 has 16 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 2216256.

The previous prime is 3625859. The next prime is 3625873. The reversal of 3625869 is 9685263.

It is not a de Polignac number, because 3625869 - 2¹¹ = 3623821 is a prime.

It is a super-2 number, since 2×3625869² = 26293852010322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3625829) 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 15 ways as a sum of consecutive naturals, for example, 9127 + ... + 9515.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^3625869 is an apocalyptic number.

3625869 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3625869 is a deficient number, since it is larger than the sum of its proper divisors (1615731).

3625869 is a wasteful number, since it uses less digits than its factorization.

3625869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

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

The square root of 3625869 is about 1904.1714733710. The cubic root of 3625869 is about 153.6281154452.

The spelling of 3625869 in words is "three million, six hundred twenty-five thousand, eight hundred sixty-nine".