654063620 has 48 divisors (see below), whose sum is σ = 1576568448. Its totient is φ = 223276800.

The previous prime is 654063587. The next prime is 654063623. The reversal of 654063620 is 26360456.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (654063623) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22595 + ... + 42645.

It is an arithmetic number, because the mean of its divisors is an integer number (32845176).

Almost surely, 2^654063620 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 654063620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788284224).

654063620 is an abundant number, since it is smaller than the sum of its proper divisors (922504828).

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

654063620 is a wasteful number, since it uses less digits than its factorization.

654063620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300 (or 20298 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 654063620 is about 25574.6675442712. The cubic root of 654063620 is about 868.0405188954.

The spelling of 654063620 in words is "six hundred fifty-four million, sixty-three thousand, six hundred twenty".