654768 has 30 divisors (see below), whose sum is σ = 1832844. Its totient is φ = 218208.

The previous prime is 654767. The next prime is 654779. The reversal of 654768 is 867456.

It is a happy number.

It is a super-2 number, since 2×654768² = 857442267648, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (654767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2130 + ... + 2417.

2⁶⁵⁴⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

654768 is an abundant number, since it is smaller than the sum of its proper divisors (1178076).

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

654768 is a wasteful number, since it uses less digits than its factorization.

654768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4552 counting only the distinct ones).

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

The square root of 654768 is about 809.1773600392. The cubic root of 654768 is about 86.8352013070.

The spelling of 654768 in words is "six hundred fifty-four thousand, seven hundred sixty-eight".