654881412 has 24 divisors (see below), whose sum is σ = 1617942816. Its totient is φ = 205452928.

The previous prime is 654881411. The next prime is 654881431. The reversal of 654881412 is 214188456.

It is a super-2 number, since 2×654881412² = 857739327566227488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (654881411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604898 + ... + 1605305.

It is an arithmetic number, because the mean of its divisors is an integer number (67414284).

Almost surely, 2^654881412 is an apocalyptic number.

It is an amenable number.

654881412 is an abundant number, since it is smaller than the sum of its proper divisors (963061404).

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

654881412 is a wasteful number, since it uses less digits than its factorization.

654881412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210227 (or 3210225 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 654881412 is about 25590.6508709724. The cubic root of 654881412 is about 868.4021457652.

The spelling of 654881412 in words is "six hundred fifty-four million, eight hundred eighty-one thousand, four hundred twelve".