64776023 has 8 divisors (see below), whose sum is σ = 71460816. Its totient is φ = 58334400.

The previous prime is 64775999. The next prime is 64776029. The reversal of 64776023 is 32067746.

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 64776023 - 2¹⁰ = 64774999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64776029) 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 7 ways as a sum of consecutive naturals, for example, 60233 + ... + 61298.

It is an arithmetic number, because the mean of its divisors is an integer number (8932602).

Almost surely, 2^64776023 is an apocalyptic number.

64776023 is a deficient number, since it is larger than the sum of its proper divisors (6684793).

64776023 is a wasteful number, since it uses less digits than its factorization.

64776023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121585.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 64776023 is about 8048.3552978233. The cubic root of 64776023 is about 401.6102238334.

The spelling of 64776023 in words is "sixty-four million, seven hundred seventy-six thousand, twenty-three".