654564419 has 4 divisors (see below), whose sum is σ = 655225920. Its totient is φ = 653902920.

The previous prime is 654564403. The next prime is 654564433. The reversal of 654564419 is 914465456.

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 654564419 - 2⁴ = 654564403 is a prime.

It is a super-2 number, since 2×654564419² = 856909157241615122, which contains 22 as substring.

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 654564419.

It is not an unprimeable number, because it can be changed into a prime (654554419) 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, 329264 + ... + 331245.

It is an arithmetic number, because the mean of its divisors is an integer number (163806480).

Almost surely, 2^654564419 is an apocalyptic number.

654564419 is a deficient number, since it is larger than the sum of its proper divisors (661501).

654564419 is an equidigital number, since it uses as much as digits as its factorization.

654564419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661500.

The product of its digits is 518400, while the sum is 44.

The square root of 654564419 is about 25584.4565898907. The cubic root of 654564419 is about 868.2620075030.

The spelling of 654564419 in words is "six hundred fifty-four million, five hundred sixty-four thousand, four hundred nineteen".