64910473 has 2 divisors, whose sum is σ = 64910474. Its totient is φ = 64910472.

The previous prime is 64910453. The next prime is 64910491. The reversal of 64910473 is 37401946.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 27846729 = 6088^2 + 5277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64910473 is a prime.

It is not a weakly prime, because it can be changed into another prime (64910413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32455236 + 32455237.

It is an arithmetic number, because the mean of its divisors is an integer number (32455237).

Almost surely, 2^64910473 is an apocalyptic number.

It is an amenable number.

64910473 is a deficient number, since it is larger than the sum of its proper divisors (1).

64910473 is an equidigital number, since it uses as much as digits as its factorization.

64910473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 64910473 is about 8056.7036063144. The cubic root of 64910473 is about 401.8878943689.

The spelling of 64910473 in words is "sixty-four million, nine hundred ten thousand, four hundred seventy-three".