64870773 has 8 divisors (see below), whose sum is σ = 94357536. Its totient is φ = 39315600.

The previous prime is 64870747. The next prime is 64870801. The reversal of 64870773 is 37707846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64870773 - 2⁹ = 64870261 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64870723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982858 + ... + 982923.

It is an arithmetic number, because the mean of its divisors is an integer number (11794692).

Almost surely, 2^64870773 is an apocalyptic number.

It is an amenable number.

64870773 is a deficient number, since it is larger than the sum of its proper divisors (29486763).

64870773 is a wasteful number, since it uses less digits than its factorization.

64870773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965795.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 64870773 is about 8054.2394426786. The cubic root of 64870773 is about 401.8059445565.

The spelling of 64870773 in words is "sixty-four million, eight hundred seventy thousand, seven hundred seventy-three".