3591969 has 32 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 2096640.

The previous prime is 3591967. The next prime is 3591977. The reversal of 3591969 is 9691953.

It is not a de Polignac number, because 3591969 - 2¹ = 3591967 is a prime.

It is a super-3 number, since 3×3591969³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3591969.

It is not an unprimeable number, because it can be changed into a prime (3591967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67747 + ... + 67799.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

Almost surely, 2^3591969 is an apocalyptic number.

It is an amenable number.

3591969 is a deficient number, since it is larger than the sum of its proper divisors (1851231).

3591969 is a wasteful number, since it uses less digits than its factorization.

3591969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its digits is 65610, while the sum is 42.

The square root of 3591969 is about 1895.2490601501. The cubic root of 3591969 is about 153.1478343845.

It can be divided in two parts, 3591 and 969, that added together give a triangular number (4560 = T₉₅).

The spelling of 3591969 in words is "three million, five hundred ninety-one thousand, nine hundred sixty-nine".