1005216763 has 4 divisors (see below), whose sum is σ = 1039879440. Its totient is φ = 970554088.

The previous prime is 1005216733. The next prime is 1005216769. The reversal of 1005216763 is 3676125001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3676125001 = 197 ⋅18660533.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005216763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005216769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17331295 + ... + 17331352.

It is an arithmetic number, because the mean of its divisors is an integer number (259969860).

Almost surely, 2^1005216763 is an apocalyptic number.

1005216763 is a deficient number, since it is larger than the sum of its proper divisors (34662677).

1005216763 is an equidigital number, since it uses as much as digits as its factorization.

1005216763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34662676.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1005216763 is about 31705.1535716199. The cubic root of 1005216763 is about 1001.7359058871.

The spelling of 1005216763 in words is "one billion, five million, two hundred sixteen thousand, seven hundred sixty-three".