727648 has 12 divisors (see below), whose sum is σ = 1432620. Its totient is φ = 363808.

The previous prime is 727633. The next prime is 727667. The reversal of 727648 is 846727.

It is a super-2 number, since 2×727648² = 1058943223808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11338 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (119385).

2⁷²⁷⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

727648 is a deficient number, since it is larger than the sum of its proper divisors (704972).

727648 is a wasteful number, since it uses less digits than its factorization.

727648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22749 (or 22741 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 727648 is about 853.0228601861. The cubic root of 727648 is about 89.9443277092.

The spelling of 727648 in words is "seven hundred twenty-seven thousand, six hundred forty-eight".