654343212 has 48 divisors (see below), whose sum is σ = 1595607552. Its totient is φ = 208501440.

The previous prime is 654343201. The next prime is 654343213. The reversal of 654343212 is 212343456.

654343212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 654343212.

It is not an unprimeable number, because it can be changed into a prime (654343213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10762 + ... + 37742.

It is an arithmetic number, because the mean of its divisors is an integer number (33241824).

Almost surely, 2^654343212 is an apocalyptic number.

It is an amenable number.

654343212 is an abundant number, since it is smaller than the sum of its proper divisors (941264340).

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

654343212 is a wasteful number, since it uses less digits than its factorization.

654343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27078 (or 27076 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 654343212 is about 25580.1331505526. The cubic root of 654343212 is about 868.1641881144.

Adding to 654343212 its reverse (212343456), we get a palindrome (866686668).

The spelling of 654343212 in words is "six hundred fifty-four million, three hundred forty-three thousand, two hundred twelve".