3909516 has 48 divisors (see below), whose sum is σ = 10348800. Its totient is φ = 1138752.

The previous prime is 3909509. The next prime is 3909523. The reversal of 3909516 is 6159093.

It is an interprime number because it is at equal distance from previous prime (3909509) and next prime (3909523).

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 an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2305 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (215600).

Almost surely, 2^3909516 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 3909516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5174400).

3909516 is an abundant number, since it is smaller than the sum of its proper divisors (6439284).

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

3909516 is a wasteful number, since it uses less digits than its factorization.

3909516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 3909516 is about 1977.2496048805. The cubic root of 3909516 is about 157.5340112994.

The spelling of 3909516 in words is "three million, nine hundred nine thousand, five hundred sixteen".