654422401 has 2 divisors, whose sum is σ = 654422402. Its totient is φ = 654422400.

The previous prime is 654422357. The next prime is 654422411. The reversal of 654422401 is 104224456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 488631025 + 165791376 = 22105^2 + 12876^2 .

It is a cyclic number.

It is not a de Polignac number, because 654422401 - 2¹¹ = 654420353 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 654422401.

It is not a weakly prime, because it can be changed into another prime (654422411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327211200 + 327211201.

It is an arithmetic number, because the mean of its divisors is an integer number (327211201).

Almost surely, 2^654422401 is an apocalyptic number.

It is an amenable number.

654422401 is a deficient number, since it is larger than the sum of its proper divisors (1).

654422401 is an equidigital number, since it uses as much as digits as its factorization.

654422401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 654422401 is about 25581.6809650969. The cubic root of 654422401 is about 868.1992086151.

Adding to 654422401 its reverse (104224456), we get a palindrome (758646857).

The spelling of 654422401 in words is "six hundred fifty-four million, four hundred twenty-two thousand, four hundred one".