45864947 has 2 divisors, whose sum is σ = 45864948. Its totient is φ = 45864946.

The previous prime is 45864919. The next prime is 45864953. The reversal of 45864947 is 74946854.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45864947 - 2⁶ = 45864883 is a prime.

It is not a weakly prime, because it can be changed into another prime (45863947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22932473 + 22932474.

It is an arithmetic number, because the mean of its divisors is an integer number (22932474).

Almost surely, 2^45864947 is an apocalyptic number.

45864947 is a deficient number, since it is larger than the sum of its proper divisors (1).

45864947 is an equidigital number, since it uses as much as digits as its factorization.

45864947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The square root of 45864947 is about 6772.3664254085. The cubic root of 45864947 is about 357.9537902134.

The spelling of 45864947 in words is "forty-five million, eight hundred sixty-four thousand, nine hundred forty-seven".