748656 has 40 divisors (see below), whose sum is σ = 2150160. Its totient is φ = 249408.

The previous prime is 748639. The next prime is 748669. The reversal of 748656 is 656847.

748656 = T₃ + T₄ + ... + T₁₆₄.

It is a happy number.

748656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 748656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 1298.

It is an arithmetic number, because the mean of its divisors is an integer number (53754).

748656 is a Friedman number, since it can be written as 8*6*(5^6-7*4), using all its digits and the basic arithmetic operations.

2⁷⁴⁸⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

748656 is an abundant number, since it is smaller than the sum of its proper divisors (1401504).

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

748656 is a wasteful number, since it uses less digits than its factorization.

748656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1738 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 748656 is about 865.2490970813. The cubic root of 748656 is about 90.8017258562.

Subtracting from 748656 its reverse (656847), we obtain a square (91809 = 303²).

The spelling of 748656 in words is "seven hundred forty-eight thousand, six hundred fifty-six".