798681 has 8 divisors (see below), whose sum is σ = 1146880. Its totient is φ = 491472.

The previous prime is 798667. The next prime is 798691. The reversal of 798681 is 186897.

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

It is not a de Polignac number, because 798681 - 2⁵ = 798649 is a prime.

It is a super-2 number, since 2×798681² = 1275782679522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 20479 = 798681 / (7 + 9 + 8 + 6 + 8 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798641) 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, 10201 + ... + 10278.

It is an arithmetic number, because the mean of its divisors is an integer number (143360).

2⁷⁹⁸⁶⁸¹ is an apocalyptic number.

It is an amenable number.

798681 is a deficient number, since it is larger than the sum of its proper divisors (348199).

798681 is a wasteful number, since it uses less digits than its factorization.

798681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20495.

The product of its digits is 24192, while the sum is 39.

The square root of 798681 is about 893.6895434098. The cubic root of 798681 is about 92.7807298102.

The spelling of 798681 in words is "seven hundred ninety-eight thousand, six hundred eighty-one".