64474147 has 2 divisors, whose sum is σ = 64474148. Its totient is φ = 64474146.

The previous prime is 64474117. The next prime is 64474211. The reversal of 64474147 is 74147446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64474147 - 2⁷ = 64474019 is a prime.

It is not a weakly prime, because it can be changed into another prime (64474117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32237073 + 32237074.

It is an arithmetic number, because the mean of its divisors is an integer number (32237074).

Almost surely, 2^64474147 is an apocalyptic number.

64474147 is a deficient number, since it is larger than the sum of its proper divisors (1).

64474147 is an equidigital number, since it uses as much as digits as its factorization.

64474147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 37.

The square root of 64474147 is about 8029.5795033115. The cubic root of 64474147 is about 400.9853768379.

The spelling of 64474147 in words is "sixty-four million, four hundred seventy-four thousand, one hundred forty-seven".