6998081 has 4 divisors (see below), whose sum is σ = 7053312. Its totient is φ = 6942852.

The previous prime is 6998063. The next prime is 6998087. The reversal of 6998081 is 1808996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6998081 - 2¹⁰ = 6997057 is a prime.

It is a super-2 number, since 2×6998081² = 97946275365122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6998087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27425 + ... + 27678.

It is an arithmetic number, because the mean of its divisors is an integer number (1763328).

Almost surely, 2^6998081 is an apocalyptic number.

It is an amenable number.

6998081 is a deficient number, since it is larger than the sum of its proper divisors (55231).

6998081 is a wasteful number, since it uses less digits than its factorization.

6998081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55230.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 6998081 is about 2645.3886292944. The cubic root of 6998081 is about 191.2756361323.

The spelling of 6998081 in words is "six million, nine hundred ninety-eight thousand, eighty-one".