654822672 has 160 divisors (see below), whose sum is σ = 2037964800. Its totient is φ = 180915840.

The previous prime is 654822611. The next prime is 654822733. The reversal of 654822672 is 276228456.

It is an interprime number because it is at equal distance from previous prime (654822611) and next prime (654822733).

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 509743 + ... + 511025.

It is an arithmetic number, because the mean of its divisors is an integer number (12737280).

Almost surely, 2^654822672 is an apocalyptic number.

654822672 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 654822672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018982400).

654822672 is an abundant number, since it is smaller than the sum of its proper divisors (1383142128).

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

654822672 is a wasteful number, since it uses less digits than its factorization.

654822672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1326 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 654822672 is about 25589.5031604758. The cubic root of 654822672 is about 868.3761810300.

The spelling of 654822672 in words is "six hundred fifty-four million, eight hundred twenty-two thousand, six hundred seventy-two".