28373705 has 8 divisors (see below), whose sum is σ = 34317312. Its totient is φ = 22519728.

The previous prime is 28373701. The next prime is 28373717. The reversal of 28373705 is 50737382.

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

It is a cyclic number.

It is not a de Polignac number, because 28373705 - 2² = 28373701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28373701) 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, 21707 + ... + 22976.

It is an arithmetic number, because the mean of its divisors is an integer number (4289664).

Almost surely, 2^28373705 is an apocalyptic number.

It is an amenable number.

28373705 is a deficient number, since it is larger than the sum of its proper divisors (5943607).

28373705 is a wasteful number, since it uses less digits than its factorization.

28373705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44815.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 28373705 is about 5326.6973820558. The cubic root of 28373705 is about 305.0038698783.

The spelling of 28373705 in words is "twenty-eight million, three hundred seventy-three thousand, seven hundred five".