64866734 has 8 divisors (see below), whose sum is σ = 97718400. Its totient is φ = 32293936.

The previous prime is 64866733. The next prime is 64866743. The reversal of 64866734 is 43766846.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64866733) 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 3 ways as a sum of consecutive naturals, for example, 69134 + ... + 70065.

It is an arithmetic number, because the mean of its divisors is an integer number (12214800).

Almost surely, 2^64866734 is an apocalyptic number.

64866734 is a deficient number, since it is larger than the sum of its proper divisors (32851666).

64866734 is a wasteful number, since it uses less digits than its factorization.

64866734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139434.

The product of its digits is 580608, while the sum is 44.

The square root of 64866734 is about 8053.9887012585. The cubic root of 64866734 is about 401.7976052700.

The spelling of 64866734 in words is "sixty-four million, eight hundred sixty-six thousand, seven hundred thirty-four".