654211368 has 24 divisors (see below), whose sum is σ = 1771822650. Its totient is φ = 218070432.

The previous prime is 654211367. The next prime is 654211399. The reversal of 654211368 is 863112456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 346629924 + 307581444 = 18618^2 + 17538^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 (654211361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4543063 + ... + 4543206.

Almost surely, 2^654211368 is an apocalyptic number.

It is an amenable number.

654211368 is an abundant number, since it is smaller than the sum of its proper divisors (1117611282).

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

654211368 is a wasteful number, since it uses less digits than its factorization.

654211368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086281 (or 9086274 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 654211368 is about 25577.5559426619. Note that the first 3 decimals coincide. The cubic root of 654211368 is about 868.1058752261.

The spelling of 654211368 in words is "six hundred fifty-four million, two hundred eleven thousand, three hundred sixty-eight".