2928831 has 8 divisors (see below), whose sum is σ = 4110720. Its totient is φ = 1849752.

The previous prime is 2928829. The next prime is 2928839. The reversal of 2928831 is 1388292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2928831 - 2¹ = 2928829 is a prime.

It is a super-2 number, since 2×2928831² = 17156102053122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2928792 and 2928801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928839) 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, 25635 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (513840).

2^2928831 is an apocalyptic number.

2928831 is a deficient number, since it is larger than the sum of its proper divisors (1181889).

2928831 is a wasteful number, since it uses less digits than its factorization.

2928831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51405.

The product of its digits is 6912, while the sum is 33.

The square root of 2928831 is about 1711.3827742501. The cubic root of 2928831 is about 143.0753348143.

The spelling of 2928831 in words is "two million, nine hundred twenty-eight thousand, eight hundred thirty-one".