28976345 has 8 divisors (see below), whose sum is σ = 34800840. Its totient is φ = 23161600.

The previous prime is 28976333. The next prime is 28976371. The reversal of 28976345 is 54367982.

It can be written as a sum of positive squares in 4 ways, for example, as 546121 + 28430224 = 739^2 + 5332^2 .

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

It is not a de Polignac number, because 28976345 - 2⁴ = 28976329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28976296 and 28976305.

It is an unprimeable number.

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, 8945 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (4350105).

Almost surely, 2^28976345 is an apocalyptic number.

It is an amenable number.

28976345 is a deficient number, since it is larger than the sum of its proper divisors (5824495).

28976345 is a wasteful number, since it uses less digits than its factorization.

28976345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4875.

The product of its digits is 362880, while the sum is 44.

The square root of 28976345 is about 5382.9680474623. The cubic root of 28976345 is about 307.1481246103.

The spelling of 28976345 in words is "twenty-eight million, nine hundred seventy-six thousand, three hundred forty-five".