3509982 has 48 divisors (see below), whose sum is σ = 8817120. Its totient is φ = 988416.

The previous prime is 3509981. The next prime is 3509983. The reversal of 3509982 is 2899053.

It is an interprime number because it is at equal distance from previous prime (3509981) and next prime (3509983).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3509981) 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, 11058 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (183690).

Almost surely, 2^3509982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3509982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4408560).

3509982 is an abundant number, since it is smaller than the sum of its proper divisors (5307138).

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

3509982 is a wasteful number, since it uses less digits than its factorization.

3509982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 3509982 is about 1873.4945956687. The cubic root of 3509982 is about 151.9736507881.

The spelling of 3509982 in words is "three million, five hundred nine thousand, nine hundred eighty-two".