798881581 has 8 divisors (see below), whose sum is σ = 848789280. Its totient is φ = 749760048.

The previous prime is 798881579. The next prime is 798881627. The reversal of 798881581 is 185188897.

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 798881581 - 2¹ = 798881579 is a prime.

It is a super-2 number, since 2×798881581² = 1276423560922119122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (798881521) 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, 194446 + ... + 198511.

It is an arithmetic number, because the mean of its divisors is an integer number (106098660).

Almost surely, 2^798881581 is an apocalyptic number.

It is an amenable number.

798881581 is a deficient number, since it is larger than the sum of its proper divisors (49907699).

798881581 is a wasteful number, since it uses less digits than its factorization.

798881581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393083.

The product of its digits is 1290240, while the sum is 55.

The square root of 798881581 is about 28264.4932910534. The cubic root of 798881581 is about 927.8849615407.

The spelling of 798881581 in words is "seven hundred ninety-eight million, eight hundred eighty-one thousand, five hundred eighty-one".