64766243 has 8 divisors (see below), whose sum is σ = 70430112. Its totient is φ = 59308416.

The previous prime is 64766203. The next prime is 64766291. The reversal of 64766243 is 34266746.

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

It is a cyclic number.

It is not a de Polignac number, because 64766243 - 2⁶ = 64766179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64766197 and 64766206.

It is not an unprimeable number, because it can be changed into a prime (64766203) 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, 50855 + ... + 52112.

It is an arithmetic number, because the mean of its divisors is an integer number (8803764).

Almost surely, 2^64766243 is an apocalyptic number.

64766243 is a deficient number, since it is larger than the sum of its proper divisors (5663869).

64766243 is a wasteful number, since it uses less digits than its factorization.

64766243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103021.

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

The square root of 64766243 is about 8047.7476973374. The cubic root of 64766243 is about 401.5900108724.

The spelling of 64766243 in words is "sixty-four million, seven hundred sixty-six thousand, two hundred forty-three".