64480943 has 2 divisors, whose sum is σ = 64480944. Its totient is φ = 64480942.

The previous prime is 64480931. The next prime is 64480979. The reversal of 64480943 is 34908446.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64480943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64480897 and 64480906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64480903) 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, 32240471 + 32240472.

It is an arithmetic number, because the mean of its divisors is an integer number (32240472).

Almost surely, 2^64480943 is an apocalyptic number.

64480943 is a deficient number, since it is larger than the sum of its proper divisors (1).

64480943 is an equidigital number, since it uses as much as digits as its factorization.

64480943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 64480943 is about 8030.0026774591. The cubic root of 64480943 is about 400.9994651767. Note that the first 3 decimals are identical.

The spelling of 64480943 in words is "sixty-four million, four hundred eighty thousand, nine hundred forty-three".