654643396 has 27 divisors (see below), whose sum is σ = 1260325423. Its totient is φ = 297309320.

The previous prime is 654643343. The next prime is 654643417. The reversal of 654643396 is 693346456.

The square root of 654643396 is 25586.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 562311 + ... + 563473.

Almost surely, 2^654643396 is an apocalyptic number.

654643396 is the 25586-th square number.

It is an amenable number.

654643396 is a deficient number, since it is larger than the sum of its proper divisors (605682027).

654643396 is a wasteful number, since it uses less digits than its factorization.

654643396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 1176 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 46.

The cubic root of 654643396 is about 868.2969263838.

The spelling of 654643396 in words is "six hundred fifty-four million, six hundred forty-three thousand, three hundred ninety-six".