2691047 has 8 divisors (see below), whose sum is σ = 2784336. Its totient is φ = 2598912.

The previous prime is 2691043. The next prime is 2691053. The reversal of 2691047 is 7401962.

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 2691047 - 2² = 2691043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9368 + ... + 9650.

It is an arithmetic number, because the mean of its divisors is an integer number (348042).

2^2691047 is an apocalyptic number.

2691047 is a deficient number, since it is larger than the sum of its proper divisors (93289).

2691047 is a wasteful number, since it uses less digits than its factorization.

2691047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2691047 is about 1640.4410992169. The cubic root of 2691047 is about 139.0935829269.

Subtracting 2691047 from its reverse (7401962), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 2691047 in words is "two million, six hundred ninety-one thousand, forty-seven".