654383407 has 2 divisors, whose sum is σ = 654383408. Its totient is φ = 654383406.

The previous prime is 654383333. The next prime is 654383449. The reversal of 654383407 is 704383456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654383407 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654383407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684383407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327191703 + 327191704.

It is an arithmetic number, because the mean of its divisors is an integer number (327191704).

Almost surely, 2^654383407 is an apocalyptic number.

654383407 is a deficient number, since it is larger than the sum of its proper divisors (1).

654383407 is an equidigital number, since it uses as much as digits as its factorization.

654383407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 654383407 is about 25580.9188067982. The cubic root of 654383407 is about 868.1819642826.

The spelling of 654383407 in words is "six hundred fifty-four million, three hundred eighty-three thousand, four hundred seven".