3613512 has 64 divisors (see below), whose sum is σ = 10465920. Its totient is φ = 1018368.

The previous prime is 3613481. The next prime is 3613513. The reversal of 3613512 is 2153163.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613513) 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, 22938 + ... + 23094.

It is an arithmetic number, because the mean of its divisors is an integer number (163530).

Almost surely, 2^3613512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3613512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5232960).

3613512 is an abundant number, since it is smaller than the sum of its proper divisors (6852408).

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

3613512 is a wasteful number, since it uses less digits than its factorization.

3613512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 306 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 3613512 is about 1900.9239858553. The cubic root of 3613512 is about 153.4533947292.

Adding to 3613512 its reverse (2153163), we get a palindrome (5766675).

The spelling of 3613512 in words is "three million, six hundred thirteen thousand, five hundred twelve".