28897334 has 4 divisors (see below), whose sum is σ = 43346004. Its totient is φ = 14448666.

The previous prime is 28897313. The next prime is 28897343. The reversal of 28897334 is 43379882.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7224332 + ... + 7224335.

It is an arithmetic number, because the mean of its divisors is an integer number (10836501).

Almost surely, 2^28897334 is an apocalyptic number.

28897334 is a deficient number, since it is larger than the sum of its proper divisors (14448670).

28897334 is a wasteful number, since it uses less digits than its factorization.

28897334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14448669.

The product of its digits is 290304, while the sum is 44.

The square root of 28897334 is about 5375.6240567956. The cubic root of 28897334 is about 306.8686993119.

The spelling of 28897334 in words is "twenty-eight million, eight hundred ninety-seven thousand, three hundred thirty-four".