6943491 has 6 divisors (see below), whose sum is σ = 10029500. Its totient is φ = 4628988.

The previous prime is 6943487. The next prime is 6943501. The reversal of 6943491 is 1943496.

It is not a de Polignac number, because 6943491 - 2² = 6943487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6943421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385741 + ... + 385758.

Almost surely, 2^6943491 is an apocalyptic number.

6943491 is a deficient number, since it is larger than the sum of its proper divisors (3086009).

6943491 is a wasteful number, since it uses less digits than its factorization.

6943491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771505 (or 771502 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6943491 is about 2635.0504738999. The cubic root of 6943491 is about 190.7769753211.

The spelling of 6943491 in words is "six million, nine hundred forty-three thousand, four hundred ninety-one".