3591020 has 24 divisors (see below), whose sum is σ = 7576800. Its totient is φ = 1429632.

The previous prime is 3591017. The next prime is 3591023. The reversal of 3591020 is 201953.

It is an interprime number because it is at equal distance from previous prime (3591017) and next prime (3591023).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3590983 and 3591001.

It is not an unprimeable number, because it can be changed into a prime (3591023) 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 7 ways as a sum of consecutive naturals, for example, 7961 + ... + 8399.

It is an arithmetic number, because the mean of its divisors is an integer number (315700).

Almost surely, 2^3591020 is an apocalyptic number.

It is an amenable number.

3591020 is an abundant number, since it is smaller than the sum of its proper divisors (3985780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3591020 is a wasteful number, since it uses less digits than its factorization.

3591020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 3591020 is about 1894.9986807383. The cubic root of 3591020 is about 153.1343459518.

Adding to 3591020 its reverse (201953), we get a palindrome (3792973).

The spelling of 3591020 in words is "three million, five hundred ninety-one thousand, twenty".