654245894 has 4 divisors (see below), whose sum is σ = 981368844. Its totient is φ = 327122946.

The previous prime is 654245863. The next prime is 654245927. The reversal of 654245894 is 498542456.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 163561472 + ... + 163561475.

It is an arithmetic number, because the mean of its divisors is an integer number (245342211).

Almost surely, 2^654245894 is an apocalyptic number.

654245894 is a deficient number, since it is larger than the sum of its proper divisors (327122950).

654245894 is a wasteful number, since it uses less digits than its factorization.

654245894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327122949.

The product of its digits is 1382400, while the sum is 47.

The square root of 654245894 is about 25578.2308614181. The cubic root of 654245894 is about 868.1211463845.

The spelling of 654245894 in words is "six hundred fifty-four million, two hundred forty-five thousand, eight hundred ninety-four".