64342766 has 4 divisors (see below), whose sum is σ = 96514152. Its totient is φ = 32171382.

The previous prime is 64342727. The next prime is 64342769. The reversal of 64342766 is 66724346.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×64342766³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342769) 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 as a sum of consecutive naturals, namely, 16085690 + ... + 16085693.

It is an arithmetic number, because the mean of its divisors is an integer number (24128538).

Almost surely, 2^64342766 is an apocalyptic number.

64342766 is a deficient number, since it is larger than the sum of its proper divisors (32171386).

64342766 is a wasteful number, since it uses less digits than its factorization.

64342766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32171385.

The product of its digits is 145152, while the sum is 38.

The square root of 64342766 is about 8021.3942678315. The cubic root of 64342766 is about 400.7128247808.

The spelling of 64342766 in words is "sixty-four million, three hundred forty-two thousand, seven hundred sixty-six".