981020701 has 8 divisors (see below), whose sum is σ = 1008194264. Its totient is φ = 953881920.

The previous prime is 981020693. The next prime is 981020723. The reversal of 981020701 is 107020189.

981020701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 606636900 + 374383801 = 24630^2 + 19349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981020701 - 2³ = 981020693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 981020701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981027701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54811 + ... + 70471.

It is an arithmetic number, because the mean of its divisors is an integer number (126024283).

Almost surely, 2^981020701 is an apocalyptic number.

981020701 is the 15661-st decagonal number.

It is an amenable number.

981020701 is a deficient number, since it is larger than the sum of its proper divisors (27173563).

981020701 is a wasteful number, since it uses less digits than its factorization.

981020701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17391.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 981020701 is about 31321.2499910205. The cubic root of 981020701 is about 993.6331158177.

The spelling of 981020701 in words is "nine hundred eighty-one million, twenty thousand, seven hundred one".