6991241 has 8 divisors (see below), whose sum is σ = 7465920. Its totient is φ = 6530832.

The previous prime is 6991147. The next prime is 6991253. The reversal of 6991241 is 1421996.

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 6991241 - 2¹⁴ = 6974857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6991198 and 6991207.

It is not an unprimeable number, because it can be changed into a prime (6991541) 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, 2546 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (933240).

Almost surely, 2^6991241 is an apocalyptic number.

It is an amenable number.

6991241 is a deficient number, since it is larger than the sum of its proper divisors (474679).

6991241 is a wasteful number, since it uses less digits than its factorization.

6991241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135.

The product of its digits is 3888, while the sum is 32.

The square root of 6991241 is about 2644.0954975190. The cubic root of 6991241 is about 191.2132975264.

The spelling of 6991241 in words is "six million, nine hundred ninety-one thousand, two hundred forty-one".