28823937 has 8 divisors (see below), whose sum is σ = 38687040. Its totient is φ = 19088400.

The previous prime is 28823933. The next prime is 28823953. The reversal of 28823937 is 73932882.

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

It is not a de Polignac number, because 28823937 - 2² = 28823933 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28823933) 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, 31362 + ... + 32267.

It is an arithmetic number, because the mean of its divisors is an integer number (4835880).

Almost surely, 2^28823937 is an apocalyptic number.

It is an amenable number.

28823937 is a deficient number, since it is larger than the sum of its proper divisors (9863103).

28823937 is a wasteful number, since it uses less digits than its factorization.

28823937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63783.

The product of its digits is 145152, while the sum is 42.

The square root of 28823937 is about 5368.7928810860. The cubic root of 28823937 is about 306.6086714263.

The spelling of 28823937 in words is "twenty-eight million, eight hundred twenty-three thousand, nine hundred thirty-seven".