654012857 has 4 divisors (see below), whose sum is σ = 657112656. Its totient is φ = 650913060.

The previous prime is 654012847. The next prime is 654012869. The reversal of 654012857 is 758210456.

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 654012857 - 2¹⁶ = 653947321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654012857.

It is not an unprimeable number, because it can be changed into a prime (654012847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549583 + ... + 1550004.

It is an arithmetic number, because the mean of its divisors is an integer number (164278164).

Almost surely, 2^654012857 is an apocalyptic number.

It is an amenable number.

654012857 is a deficient number, since it is larger than the sum of its proper divisors (3099799).

654012857 is a wasteful number, since it uses less digits than its factorization.

654012857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099798.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 654012857 is about 25573.6750780954. The cubic root of 654012857 is about 868.0180616096.

The spelling of 654012857 in words is "six hundred fifty-four million, twelve thousand, eight hundred fifty-seven".