654004397 has 2 divisors, whose sum is σ = 654004398. Its totient is φ = 654004396.

The previous prime is 654004387. The next prime is 654004409. The reversal of 654004397 is 793400456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651985156 + 2019241 = 25534^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 654004397 - 2¹² = 654000301 is a prime.

It is equal to p_33990833 and since 654004397 and 33990833 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654004397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654004387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327002198 + 327002199.

It is an arithmetic number, because the mean of its divisors is an integer number (327002199).

Almost surely, 2^654004397 is an apocalyptic number.

It is an amenable number.

654004397 is a deficient number, since it is larger than the sum of its proper divisors (1).

654004397 is an equidigital number, since it uses as much as digits as its factorization.

654004397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 654004397 is about 25573.5096730973. The cubic root of 654004397 is about 868.0143188369.

The spelling of 654004397 in words is "six hundred fifty-four million, four thousand, three hundred ninety-seven".