2828947 has 4 divisors (see below), whose sum is σ = 3086136. Its totient is φ = 2571760.

The previous prime is 2828939. The next prime is 2828951. The reversal of 2828947 is 7498282.

2828947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2828947 - 2³ = 2828939 is a prime.

It is a super-2 number, since 2×2828947² = 16005882257618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128578 + ... + 128599.

It is an arithmetic number, because the mean of its divisors is an integer number (771534).

2^2828947 is an apocalyptic number.

2828947 is a deficient number, since it is larger than the sum of its proper divisors (257189).

2828947 is a wasteful number, since it uses less digits than its factorization.

2828947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257188.

The product of its digits is 64512, while the sum is 40.

The square root of 2828947 is about 1681.9473832436. The cubic root of 2828947 is about 141.4300202941.

It can be divided in two parts, 282 and 8947, that added together give a palindrome (9229).

The spelling of 2828947 in words is "two million, eight hundred twenty-eight thousand, nine hundred forty-seven".