654744189 has 16 divisors (see below), whose sum is σ = 960231744. Its totient is φ = 396812240.

The previous prime is 654744173. The next prime is 654744191. The reversal of 654744189 is 981447456.

It is not a de Polignac number, because 654744189 - 2⁴ = 654744173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654744989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77994 + ... + 85979.

It is an arithmetic number, because the mean of its divisors is an integer number (60014484).

Almost surely, 2^654744189 is an apocalyptic number.

It is an amenable number.

654744189 is a deficient number, since it is larger than the sum of its proper divisors (305487555).

654744189 is a wasteful number, since it uses less digits than its factorization.

654744189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164009 (or 163987 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 654744189 is about 25587.9696146451. The cubic root of 654744189 is about 868.3414869092.

The spelling of 654744189 in words is "six hundred fifty-four million, seven hundred forty-four thousand, one hundred eighty-nine".