4391916 has 24 divisors (see below), whose sum is σ = 10851120. Its totient is φ = 1377792.

The previous prime is 4391911. The next prime is 4391921. The reversal of 4391916 is 6191934.

4391916 = T₁₅₉ + T₁₆₀ + ... + T₃₁₁.

It is an interprime number because it is at equal distance from previous prime (4391911) and next prime (4391921).

It is not an unprimeable number, because it can be changed into a prime (4391911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10561 + ... + 10968.

It is an arithmetic number, because the mean of its divisors is an integer number (452130).

Almost surely, 2^4391916 is an apocalyptic number.

It is an amenable number.

4391916 is an abundant number, since it is smaller than the sum of its proper divisors (6459204).

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

4391916 is a wasteful number, since it uses less digits than its factorization.

4391916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21553 (or 21551 counting only the distinct ones).

The product of its digits is 5832, while the sum is 33.

The square root of 4391916 is about 2095.6898625512. The cubic root of 4391916 is about 163.7638381561.

The spelling of 4391916 in words is "four million, three hundred ninety-one thousand, nine hundred sixteen".