911648 has 24 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 440640.

The previous prime is 911633. The next prime is 911657. The reversal of 911648 is 846119.

911648 = T₈₇ + T₈₈ + ... + T₁₈₂.

It is a super-2 number, since 2×911648² = 1662204151808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 911648.

It is a congruent number.

It is an unprimeable number.

911648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (77280).

2⁹¹¹⁶⁴⁸ 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 911648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927360).

911648 is an abundant number, since it is smaller than the sum of its proper divisors (943072).

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

911648 is a wasteful number, since it uses less digits than its factorization.

911648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 952 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 911648 is about 954.8025973991. The cubic root of 911648 is about 96.9636736473.

The spelling of 911648 in words is "nine hundred eleven thousand, six hundred forty-eight".