64019047 has 2 divisors, whose sum is σ = 64019048. Its totient is φ = 64019046.

The previous prime is 64019023. The next prime is 64019057. The reversal of 64019047 is 74091046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64019047 - 2⁷ = 64018919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64019057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32009523 + 32009524.

It is an arithmetic number, because the mean of its divisors is an integer number (32009524).

Almost surely, 2^64019047 is an apocalyptic number.

64019047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64019047 is an equidigital number, since it uses as much as digits as its factorization.

64019047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 64019047 is about 8001.1903489418. The cubic root of 64019047 is about 400.0396773141.

The spelling of 64019047 in words is "sixty-four million, nineteen thousand, forty-seven".