654804072 has 96 divisors (see below), whose sum is σ = 1971540480. Its totient is φ = 194970240.

The previous prime is 654804067. The next prime is 654804083. The reversal of 654804072 is 270408456.

654804072 is a `hidden beast` number, since 6 + 548 + 0 + 40 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17733 + ... + 40299.

It is an arithmetic number, because the mean of its divisors is an integer number (20536880).

Almost surely, 2^654804072 is an apocalyptic number.

654804072 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654804072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985770240).

654804072 is an abundant number, since it is smaller than the sum of its proper divisors (1316736408).

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

654804072 is a wasteful number, since it uses less digits than its factorization.

654804072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22623 (or 22616 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 654804072 is about 25589.1397276266. The cubic root of 654804072 is about 868.3679589822.

The spelling of 654804072 in words is "six hundred fifty-four million, eight hundred four thousand, seventy-two".