654986385 has 32 divisors (see below), whose sum is σ = 1166484480. Its totient is φ = 348706944.

The previous prime is 654986369. The next prime is 654986401. The reversal of 654986385 is 583689456.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (654986369) and next prime (654986401).

It is not a de Polignac number, because 654986385 - 2⁴ = 654986369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77949 + ... + 85941.

It is an arithmetic number, because the mean of its divisors is an integer number (36452640).

Almost surely, 2^654986385 is an apocalyptic number.

It is an amenable number.

654986385 is a deficient number, since it is larger than the sum of its proper divisors (511498095).

654986385 is a wasteful number, since it uses less digits than its factorization.

654986385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8614 (or 8608 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The square root of 654986385 is about 25592.7017917218. The cubic root of 654986385 is about 868.4485429227.

The spelling of 654986385 in words is "six hundred fifty-four million, nine hundred eighty-six thousand, three hundred eighty-five".