104643457 has 2 divisors, whose sum is σ = 104643458. Its totient is φ = 104643456.

The previous prime is 104643443. The next prime is 104643527. The reversal of 104643457 is 754346401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56535361 + 48108096 = 7519^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 104643457 - 2²³ = 96254849 is a prime.

It is not a weakly prime, because it can be changed into another prime (104641457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52321728 + 52321729.

It is an arithmetic number, because the mean of its divisors is an integer number (52321729).

Almost surely, 2^104643457 is an apocalyptic number.

It is an amenable number.

104643457 is a deficient number, since it is larger than the sum of its proper divisors (1).

104643457 is an equidigital number, since it uses as much as digits as its factorization.

104643457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 104643457 is about 10229.5384548864. The cubic root of 104643457 is about 471.2348049333.

Adding to 104643457 its reverse (754346401), we get a palindrome (858989858).

The spelling of 104643457 in words is "one hundred four million, six hundred forty-three thousand, four hundred fifty-seven".