654394927 has 4 divisors (see below), whose sum is σ = 654816240. Its totient is φ = 653973616.

The previous prime is 654394847. The next prime is 654394931. The reversal of 654394927 is 729493456.

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 654394927 - 2⁷ = 654394799 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654394967) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 208318 + ... + 211435.

It is an arithmetic number, because the mean of its divisors is an integer number (163704060).

Almost surely, 2^654394927 is an apocalyptic number.

654394927 is a deficient number, since it is larger than the sum of its proper divisors (421313).

654394927 is a wasteful number, since it uses less digits than its factorization.

654394927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421312.

The product of its digits is 1632960, while the sum is 49.

The square root of 654394927 is about 25581.1439736381. The cubic root of 654394927 is about 868.1870588482.

The spelling of 654394927 in words is "six hundred fifty-four million, three hundred ninety-four thousand, nine hundred twenty-seven".