3091648 has 56 divisors (see below), whose sum is σ = 7185152. Its totient is φ = 1292544.

The previous prime is 3091643. The next prime is 3091703. The reversal of 3091648 is 8461903.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (3091643) 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, 29965 + ... + 30067.

Almost surely, 2^3091648 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 3091648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3592576).

3091648 is an abundant number, since it is smaller than the sum of its proper divisors (4093504).

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

3091648 is a wasteful number, since it uses less digits than its factorization.

3091648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3091648 is about 1758.3082778626. The cubic root of 3091648 is about 145.6789090443.

The spelling of 3091648 in words is "three million, ninety-one thousand, six hundred forty-eight".