64863763 has 4 divisors (see below), whose sum is σ = 66445848. Its totient is φ = 63281680.

The previous prime is 64863751. The next prime is 64863767. The reversal of 64863763 is 36736846.

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

It is a cyclic number.

It is not a de Polignac number, because 64863763 - 2⁹ = 64863251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64863767) 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, 790981 + ... + 791062.

It is an arithmetic number, because the mean of its divisors is an integer number (16611462).

Almost surely, 2^64863763 is an apocalyptic number.

64863763 is a deficient number, since it is larger than the sum of its proper divisors (1582085).

64863763 is a wasteful number, since it uses less digits than its factorization.

64863763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582084.

The product of its digits is 435456, while the sum is 43.

The square root of 64863763 is about 8053.8042563747. The cubic root of 64863763 is about 401.7914708524.

The spelling of 64863763 in words is "sixty-four million, eight hundred sixty-three thousand, seven hundred sixty-three".