64270073 has 16 divisors (see below), whose sum is σ = 78723840. Its totient is φ = 51264576.

The previous prime is 64270069. The next prime is 64270097. The reversal of 64270073 is 37007246.

It is a cyclic number.

It is not a de Polignac number, because 64270073 - 2² = 64270069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64270033) 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 in 15 ways as a sum of consecutive naturals, for example, 563 + ... + 11351.

It is an arithmetic number, because the mean of its divisors is an integer number (4920240).

Almost surely, 2^64270073 is an apocalyptic number.

It is an amenable number.

64270073 is a deficient number, since it is larger than the sum of its proper divisors (14453767).

64270073 is a wasteful number, since it uses less digits than its factorization.

64270073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 64270073 is about 8016.8617924971. The cubic root of 64270073 is about 400.5618624902.

The spelling of 64270073 in words is "sixty-four million, two hundred seventy thousand, seventy-three".