3500946 has 36 divisors (see below), whose sum is σ = 8069802. Its totient is φ = 1096704.

The previous prime is 3500941. The next prime is 3500953. The reversal of 3500946 is 6490053.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3381921 + 119025 = 1839^2 + 345^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500941) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4866 + ... + 5538.

Almost surely, 2^3500946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3500946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4034901).

3500946 is an abundant number, since it is smaller than the sum of its proper divisors (4568856).

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

3500946 is a wasteful number, since it uses less digits than its factorization.

3500946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3500946 is about 1871.0815054401. The cubic root of 3500946 is about 151.8431264719.

Adding to 3500946 its reverse (6490053), we get a palindrome (9990999).

The spelling of 3500946 in words is "three million, five hundred thousand, nine hundred forty-six".