654707643 has 8 divisors (see below), whose sum is σ = 918888000. Its totient is φ = 413499528.

The previous prime is 654707609. The next prime is 654707657. The reversal of 654707643 is 346707456.

It is a happy number.

654707643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 654707643 - 2⁶ = 654707579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654707595 and 654707604.

It is not an unprimeable number, because it can be changed into a prime (654707843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5742993 + ... + 5743106.

It is an arithmetic number, because the mean of its divisors is an integer number (114861000).

Almost surely, 2^654707643 is an apocalyptic number.

654707643 is a deficient number, since it is larger than the sum of its proper divisors (264180357).

654707643 is a wasteful number, since it uses less digits than its factorization.

654707643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486121.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 654707643 is about 25587.2554800236. The cubic root of 654707643 is about 868.3253304728.

The spelling of 654707643 in words is "six hundred fifty-four million, seven hundred seven thousand, six hundred forty-three".