6241991 has 8 divisors (see below), whose sum is σ = 7152000. Its totient is φ = 5336568.

The previous prime is 6241987. The next prime is 6241997. The reversal of 6241991 is 1991426.

6241991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6241991 - 2² = 6241987 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6241997) 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, 2600 + ... + 4386.

It is an arithmetic number, because the mean of its divisors is an integer number (894000).

Almost surely, 2^6241991 is an apocalyptic number.

6241991 is a deficient number, since it is larger than the sum of its proper divisors (910009).

6241991 is a wasteful number, since it uses less digits than its factorization.

6241991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293.

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

The square root of 6241991 is about 2498.3976865183. The cubic root of 6241991 is about 184.1228602110.

The spelling of 6241991 in words is "six million, two hundred forty-one thousand, nine hundred ninety-one".