2948947 has 4 divisors (see below), whose sum is σ = 2953240. Its totient is φ = 2944656.

The previous prime is 2948929. The next prime is 2948951. The reversal of 2948947 is 7498492.

It is a semiprime because it is the product of two primes.

It is a 4-Lehmer number, since φ(2948947) divides (2948947-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2948947 is a prime.

It is a Duffinian number.

2948947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2948917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (738310).

2^2948947 is an apocalyptic number.

2948947 is the 859-th decagonal number.

2948947 is a deficient number, since it is larger than the sum of its proper divisors (4293).

2948947 is an equidigital number, since it uses as much as digits as its factorization.

2948947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292.

The product of its digits is 145152, while the sum is 43.

The square root of 2948947 is about 1717.2498362207. The cubic root of 2948947 is about 143.4021477153.

The spelling of 2948947 in words is "two million, nine hundred forty-eight thousand, nine hundred forty-seven".