654283391 has 4 divisors (see below), whose sum is σ = 665373000. Its totient is φ = 643193784.

The previous prime is 654283379. The next prime is 654283417. The reversal of 654283391 is 193382456.

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 654283391 - 2²² = 650089087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654283891) 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, 5544716 + ... + 5544833.

It is an arithmetic number, because the mean of its divisors is an integer number (166343250).

Almost surely, 2^654283391 is an apocalyptic number.

654283391 is a deficient number, since it is larger than the sum of its proper divisors (11089609).

654283391 is a wasteful number, since it uses less digits than its factorization.

654283391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11089608.

The product of its digits is 155520, while the sum is 41.

The square root of 654283391 is about 25578.9638374974. The cubic root of 654283391 is about 868.1377310341.

The spelling of 654283391 in words is "six hundred fifty-four million, two hundred eighty-three thousand, three hundred ninety-one".