3491628 has 48 divisors (see below), whose sum is σ = 9402624. Its totient is φ = 987840.

The previous prime is 3491627. The next prime is 3491639. The reversal of 3491628 is 8261943.

3491628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not an unprimeable number, because it can be changed into a prime (3491627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16443 + ... + 16653.

It is an arithmetic number, because the mean of its divisors is an integer number (195888).

Almost surely, 2^3491628 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 3491628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4701312).

3491628 is an abundant number, since it is smaller than the sum of its proper divisors (5910996).

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

3491628 is a wasteful number, since it uses less digits than its factorization.

3491628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 3491628 is about 1868.5898426353. The cubic root of 3491628 is about 151.7082932608.

The spelling of 3491628 in words is "three million, four hundred ninety-one thousand, six hundred twenty-eight".