64747067 has 16 divisors (see below), whose sum is σ = 85473792. Its totient is φ = 47483520.

The previous prime is 64747063. The next prime is 64747087. The reversal of 64747067 is 76074746.

It is not a de Polignac number, because 64747067 - 2² = 64747063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64747063) 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 in 15 ways as a sum of consecutive naturals, for example, 23423 + ... + 26040.

It is an arithmetic number, because the mean of its divisors is an integer number (5342112).

Almost surely, 2^64747067 is an apocalyptic number.

64747067 is a deficient number, since it is larger than the sum of its proper divisors (20726725).

64747067 is a wasteful number, since it uses less digits than its factorization.

64747067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49498.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 64747067 is about 8046.5562198993. The cubic root of 64747067 is about 401.5503726810.

The spelling of 64747067 in words is "sixty-four million, seven hundred forty-seven thousand, sixty-seven".