1020766873 has 12 divisors (see below), whose sum is σ = 1216386612. Its totient is φ = 853601280.

The previous prime is 1020766867. The next prime is 1020766889. The reversal of 1020766873 is 3786670201.

It can be written as a sum of positive squares in 2 ways, for example, as 98247744 + 922519129 = 9912^2 + 30373^2 .

It is not a de Polignac number, because 1020766873 - 2²⁵ = 987212441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020766823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252040 + ... + 256057.

It is an arithmetic number, because the mean of its divisors is an integer number (101365551).

Almost surely, 2^1020766873 is an apocalyptic number.

It is an amenable number.

1020766873 is a deficient number, since it is larger than the sum of its proper divisors (195619739).

1020766873 is an equidigital number, since it uses as much as digits as its factorization.

1020766873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508152 (or 508145 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1020766873 is about 31949.4424520992. The cubic root of 1020766873 is about 1006.8749181867.

The spelling of 1020766873 in words is "one billion, twenty million, seven hundred sixty-six thousand, eight hundred seventy-three".