654278083 has 4 divisors (see below), whose sum is σ = 656511408. Its totient is φ = 652044760.

The previous prime is 654278063. The next prime is 654278113. The reversal of 654278083 is 380872456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654278083 - 2²¹ = 652180931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654278003) 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, 1116223 + ... + 1116808.

It is an arithmetic number, because the mean of its divisors is an integer number (164127852).

Almost surely, 2^654278083 is an apocalyptic number.

654278083 is a deficient number, since it is larger than the sum of its proper divisors (2233325).

654278083 is a wasteful number, since it uses less digits than its factorization.

654278083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233324.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 654278083 is about 25578.8600801521. The cubic root of 654278083 is about 868.1353833829.

The spelling of 654278083 in words is "six hundred fifty-four million, two hundred seventy-eight thousand, eighty-three".