3231865 has 16 divisors (see below), whose sum is σ = 4773888. Its totient is φ = 2045376.

The previous prime is 3231863. The next prime is 3231869. The reversal of 3231865 is 5681323.

It is a cyclic number.

It is not a de Polignac number, because 3231865 - 2¹ = 3231863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (298368).

Almost surely, 2^3231865 is an apocalyptic number.

3231865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3231865 is a deficient number, since it is larger than the sum of its proper divisors (1542023).

3231865 is a wasteful number, since it uses less digits than its factorization.

3231865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128.

The product of its digits is 4320, while the sum is 28.

The square root of 3231865 is about 1797.7388575652. The cubic root of 3231865 is about 147.8487772389.

It can be divided in two parts, 3231 and 865, that added together give a 12-th power (4096 = 2¹²).

The spelling of 3231865 in words is "three million, two hundred thirty-one thousand, eight hundred sixty-five".