981063790 has 48 divisors (see below), whose sum is σ = 2082443472. Its totient is φ = 331744896.

The previous prime is 981063767. The next prime is 981063869. The reversal of 981063790 is 97360189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22057 + ... + 49483.

It is an arithmetic number, because the mean of its divisors is an integer number (43384239).

Almost surely, 2^981063790 is an apocalyptic number.

981063790 is an abundant number, since it is smaller than the sum of its proper divisors (1101379682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981063790 is a wasteful number, since it uses less digits than its factorization.

981063790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521 (or 27514 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 981063790 is about 31321.9378391568. The cubic root of 981063790 is about 993.6476632615.

The spelling of 981063790 in words is "nine hundred eighty-one million, sixty-three thousand, seven hundred ninety".