2928447 has 8 divisors (see below), whose sum is σ = 4338480. Its totient is φ = 1952280.

The previous prime is 2928421. The next prime is 2928461. The reversal of 2928447 is 7448292.

It is not a de Polignac number, because 2928447 - 2⁷ = 2928319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54204 + ... + 54257.

It is an arithmetic number, because the mean of its divisors is an integer number (542310).

2^2928447 is an apocalyptic number.

2928447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2928447 is a deficient number, since it is larger than the sum of its proper divisors (1410033).

2928447 is a wasteful number, since it uses less digits than its factorization.

2928447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108470 (or 108464 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2928447 is about 1711.2705805921. The cubic root of 2928447 is about 143.0690816562.

It can be divided in two parts, 2928 and 447, that added together give a cube (3375 = 15³).

The spelling of 2928447 in words is "two million, nine hundred twenty-eight thousand, four hundred forty-seven".