980781 has 8 divisors (see below), whose sum is σ = 1384704. Its totient is φ = 615360.

The previous prime is 980773. The next prime is 980801. The reversal of 980781 is 187089.

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

It is not a de Polignac number, because 980781 - 2³ = 980773 is a prime.

It is a super-2 number, since 2×980781² = 1923862739922, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980781.

It is not an unprimeable number, because it can be changed into a prime (980711) 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, 9565 + ... + 9666.

It is an arithmetic number, because the mean of its divisors is an integer number (173088).

2⁹⁸⁰⁷⁸¹ is an apocalyptic number.

It is an amenable number.

980781 is a deficient number, since it is larger than the sum of its proper divisors (403923).

980781 is a wasteful number, since it uses less digits than its factorization.

980781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 980781 is about 990.3438796701. The cubic root of 980781 is about 99.3552181660.

The spelling of 980781 in words is "nine hundred eighty thousand, seven hundred eighty-one".