64474651 has 2 divisors, whose sum is σ = 64474652. Its totient is φ = 64474650.

The previous prime is 64474573. The next prime is 64474691. The reversal of 64474651 is 15647446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64474651 - 2¹³ = 64466459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64474651.

It is not a weakly prime, because it can be changed into another prime (64474691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32237325 + 32237326.

It is an arithmetic number, because the mean of its divisors is an integer number (32237326).

Almost surely, 2^64474651 is an apocalyptic number.

64474651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64474651 is an equidigital number, since it uses as much as digits as its factorization.

64474651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 64474651 is about 8029.6108872099. The cubic root of 64474651 is about 400.9864216811.

The spelling of 64474651 in words is "sixty-four million, four hundred seventy-four thousand, six hundred fifty-one".