3509772 has 72 divisors (see below), whose sum is σ = 9805824. Its totient is φ = 973728.

The previous prime is 3509761. The next prime is 3509773. The reversal of 3509772 is 2779053.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3509773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27573 + ... + 27699.

It is an arithmetic number, because the mean of its divisors is an integer number (136192).

Almost surely, 2^3509772 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 3509772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4902912).

3509772 is an abundant number, since it is smaller than the sum of its proper divisors (6296052).

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

3509772 is a wasteful number, since it uses less digits than its factorization.

3509772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 3509772 is about 1873.4385498329. The cubic root of 3509772 is about 151.9706198986.

The spelling of 3509772 in words is "three million, five hundred nine thousand, seven hundred seventy-two".