798981 has 8 divisors (see below), whose sum is σ = 1070880. Its totient is φ = 529872.

The previous prime is 798961. The next prime is 799003. The reversal of 798981 is 189897.

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

It is not a de Polignac number, because 798981 - 2¹⁰ = 797957 is a prime.

It is a super-2 number, since 2×798981² = 1276741276722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (133860).

2⁷⁹⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

798981 is a deficient number, since it is larger than the sum of its proper divisors (271899).

798981 is a wasteful number, since it uses less digits than its factorization.

798981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395.

The product of its digits is 36288, while the sum is 42.

The square root of 798981 is about 893.8573711728. The cubic root of 798981 is about 92.7923451003.

The spelling of 798981 in words is "seven hundred ninety-eight thousand, nine hundred eighty-one".