948781 has 8 divisors (see below), whose sum is σ = 988344. Its totient is φ = 910080.

The previous prime is 948767. The next prime is 948797. The reversal of 948781 is 187849.

It can be written as a sum of positive squares in 4 ways, for example, as 15625 + 933156 = 125^2 + 966^2 .

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 948781 - 2⁵ = 948749 is a prime.

It is a super-2 number, since 2×948781² = 1800370771922, which contains 22 as substring.

It is a Duffinian number.

948781 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 948781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (948721) 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, 2835 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (123543).

2⁹⁴⁸⁷⁸¹ is an apocalyptic number.

It is an amenable number.

948781 is a deficient number, since it is larger than the sum of its proper divisors (39563).

948781 is a wasteful number, since it uses less digits than its factorization.

948781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its digits is 16128, while the sum is 37.

The square root of 948781 is about 974.0538999460. The cubic root of 948781 is about 98.2626924103.

The spelling of 948781 in words is "nine hundred forty-eight thousand, seven hundred eighty-one".