64458487 has 2 divisors, whose sum is σ = 64458488. Its totient is φ = 64458486.

The previous prime is 64458461. The next prime is 64458491. The reversal of 64458487 is 78485446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64458487 - 2¹¹ = 64456439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64458287) 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, 32229243 + 32229244.

It is an arithmetic number, because the mean of its divisors is an integer number (32229244).

Almost surely, 2^64458487 is an apocalyptic number.

64458487 is a deficient number, since it is larger than the sum of its proper divisors (1).

64458487 is an equidigital number, since it uses as much as digits as its factorization.

64458487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 46.

The square root of 64458487 is about 8028.6042996277. The cubic root of 64458487 is about 400.9529093567.

The spelling of 64458487 in words is "sixty-four million, four hundred fifty-eight thousand, four hundred eighty-seven".