654464 has 16 divisors (see below), whose sum is σ = 1304070. Its totient is φ = 327168.

The previous prime is 654439. The next prime is 654491. The reversal of 654464 is 464456.

It can be written as a sum of positive squares in only one way, i.e., 652864 + 1600 = 808^2 + 40^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654464.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2429 + ... + 2684.

2⁶⁵⁴⁴⁶⁴ is an apocalyptic number.

654464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

654464 is a deficient number, since it is larger than the sum of its proper divisors (649606).

654464 is an equidigital number, since it uses as much as digits as its factorization.

654464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127 (or 5115 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 654464 is about 808.9894931333. The cubic root of 654464 is about 86.8217604203.

The spelling of 654464 in words is "six hundred fifty-four thousand, four hundred sixty-four".