981008763 has 48 divisors (see below), whose sum is σ = 1571230080. Its totient is φ = 542505600.

The previous prime is 981008761. The next prime is 981008767. The reversal of 981008763 is 367800189.

It is not a de Polignac number, because 981008763 - 2¹ = 981008761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981008761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 837168 + ... + 838338.

It is an arithmetic number, because the mean of its divisors is an integer number (32733960).

Almost surely, 2^981008763 is an apocalyptic number.

981008763 is a deficient number, since it is larger than the sum of its proper divisors (590221317).

981008763 is a wasteful number, since it uses less digits than its factorization.

981008763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 981008763 is about 31321.0594169482. The cubic root of 981008763 is about 993.6290853081.

The spelling of 981008763 in words is "nine hundred eighty-one million, eight thousand, seven hundred sixty-three".