654768712 has 32 divisors (see below), whose sum is σ = 1329020280. Its totient is φ = 300625920.

The previous prime is 654768707. The next prime is 654768727. The reversal of 654768712 is 217867456.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 398960676 + 255808036 = 19974^2 + 15994^2 .

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, 3762 + ... + 36382.

Almost surely, 2^654768712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654768712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664510140).

654768712 is an abundant number, since it is smaller than the sum of its proper divisors (674251568).

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

654768712 is a wasteful number, since it uses less digits than its factorization.

654768712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32833 (or 32829 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 654768712 is about 25588.4488001911. The cubic root of 654768712 is about 868.3523278212.

The spelling of 654768712 in words is "six hundred fifty-four million, seven hundred sixty-eight thousand, seven hundred twelve".