654404741 has 2 divisors, whose sum is σ = 654404742. Its totient is φ = 654404740.

The previous prime is 654404689. The next prime is 654404743. The reversal of 654404741 is 147404456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508502500 + 145902241 = 22550^2 + 12079^2 .

It is a cyclic number.

It is not a de Polignac number, because 654404741 - 2⁶ = 654404677 is a prime.

It is a Sophie Germain prime.

Together with 654404743, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654404743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327202370 + 327202371.

It is an arithmetic number, because the mean of its divisors is an integer number (327202371).

Almost surely, 2^654404741 is an apocalyptic number.

It is an amenable number.

654404741 is a deficient number, since it is larger than the sum of its proper divisors (1).

654404741 is an equidigital number, since it uses as much as digits as its factorization.

654404741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 654404741 is about 25581.3357938947. The cubic root of 654404741 is about 868.1913989109.

The spelling of 654404741 in words is "six hundred fifty-four million, four hundred four thousand, seven hundred forty-one".