3916505 has 8 divisors (see below), whose sum is σ = 4777224. Its totient is φ = 3081600.

The previous prime is 3916499. The next prime is 3916529. The reversal of 3916505 is 5056193.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 3916441 = 8^2 + 1979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3916505 - 2¹⁴ = 3900121 is a prime.

It is a super-2 number, since 2×3916505² = 30678022830050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

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 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 6725.

It is an arithmetic number, because the mean of its divisors is an integer number (597153).

Almost surely, 2^3916505 is an apocalyptic number.

It is an amenable number.

3916505 is a deficient number, since it is larger than the sum of its proper divisors (860719).

3916505 is a wasteful number, since it uses less digits than its factorization.

3916505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12907.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 3916505 is about 1979.0161697167. The cubic root of 3916505 is about 157.6278293723.

The spelling of 3916505 in words is "three million, nine hundred sixteen thousand, five hundred five".