654968634 has 16 divisors (see below), whose sum is σ = 1310845440. Its totient is φ = 218171520.

The previous prime is 654968609. The next prime is 654968653. The reversal of 654968634 is 436869456.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28279 + ... + 45930.

It is an arithmetic number, because the mean of its divisors is an integer number (81927840).

Almost surely, 2^654968634 is an apocalyptic number.

654968634 is an abundant number, since it is smaller than the sum of its proper divisors (655876806).

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

654968634 is a wasteful number, since it uses less digits than its factorization.

654968634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75685.

The product of its digits is 3732480, while the sum is 51.

The square root of 654968634 is about 25592.3549912860. The cubic root of 654968634 is about 868.4406974826.

The spelling of 654968634 in words is "six hundred fifty-four million, nine hundred sixty-eight thousand, six hundred thirty-four".