2947479 has 4 divisors (see below), whose sum is σ = 3929976. Its totient is φ = 1964984.

The previous prime is 2947471. The next prime is 2947487. The reversal of 2947479 is 9747492.

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

It is an interprime number because it is at equal distance from previous prime (2947471) and next prime (2947487).

It is a cyclic number.

It is not a de Polignac number, because 2947479 - 2³ = 2947471 is a prime.

It is a D-number.

2947479 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2947479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947471) 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, 491244 + ... + 491249.

It is an arithmetic number, because the mean of its divisors is an integer number (982494).

2^2947479 is an apocalyptic number.

2947479 is a deficient number, since it is larger than the sum of its proper divisors (982497).

2947479 is an equidigital number, since it uses as much as digits as its factorization.

2947479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982496.

The product of its digits is 127008, while the sum is 42.

The square root of 2947479 is about 1716.8223553996. The cubic root of 2947479 is about 143.3783483394.

The spelling of 2947479 in words is "two million, nine hundred forty-seven thousand, four hundred seventy-nine".