2947427 has 8 divisors (see below), whose sum is σ = 3515136. Its totient is φ = 2416392.

The previous prime is 2947403. The next prime is 2947429. The reversal of 2947427 is 7247492.

It is a happy number.

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 2947427 - 2⁶ = 2947363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2947429) 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, 8993 + ... + 9314.

It is an arithmetic number, because the mean of its divisors is an integer number (439392).

2^2947427 is an apocalyptic number.

2947427 is a deficient number, since it is larger than the sum of its proper divisors (567709).

2947427 is a wasteful number, since it uses less digits than its factorization.

2947427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18337.

The product of its digits is 28224, while the sum is 35.

The square root of 2947427 is about 1716.8072110753. The cubic root of 2947427 is about 143.3775051648.

The spelling of 2947427 in words is "two million, nine hundred forty-seven thousand, four hundred twenty-seven".