654428893 has 4 divisors (see below), whose sum is σ = 668352960. Its totient is φ = 640504828.

The previous prime is 654428857. The next prime is 654428897. The reversal of 654428893 is 398824456.

654428893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 654428893 - 2¹⁷ = 654297821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654428897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6961963 + ... + 6962056.

It is an arithmetic number, because the mean of its divisors is an integer number (167088240).

Almost surely, 2^654428893 is an apocalyptic number.

It is an amenable number.

654428893 is a deficient number, since it is larger than the sum of its proper divisors (13924067).

654428893 is a wasteful number, since it uses less digits than its factorization.

654428893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924066.

The product of its digits is 1658880, while the sum is 49.

The square root of 654428893 is about 25581.8078524564. The cubic root of 654428893 is about 868.2020795083.

The spelling of 654428893 in words is "six hundred fifty-four million, four hundred twenty-eight thousand, eight hundred ninety-three".