104945647 has 2 divisors, whose sum is σ = 104945648. Its totient is φ = 104945646.

The previous prime is 104945629. The next prime is 104945677. The reversal of 104945647 is 746549401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104945647 is a prime.

It is a super-2 number, since 2×104945647² = 22027177648497218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104945627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52472823 + 52472824.

It is an arithmetic number, because the mean of its divisors is an integer number (52472824).

Almost surely, 2^104945647 is an apocalyptic number.

104945647 is a deficient number, since it is larger than the sum of its proper divisors (1).

104945647 is an equidigital number, since it uses as much as digits as its factorization.

104945647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 104945647 is about 10244.2982678171. The cubic root of 104945647 is about 471.6879805463.

The spelling of 104945647 in words is "one hundred four million, nine hundred forty-five thousand, six hundred forty-seven".