28399935 has 8 divisors (see below), whose sum is σ = 45439920. Its totient is φ = 15146624.

The previous prime is 28399933. The next prime is 28399949. The reversal of 28399935 is 53999382.

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 28399935 - 2¹ = 28399933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28399933) 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, 946650 + ... + 946679.

It is an arithmetic number, because the mean of its divisors is an integer number (5679990).

Almost surely, 2^28399935 is an apocalyptic number.

28399935 is a deficient number, since it is larger than the sum of its proper divisors (17039985).

28399935 is a wasteful number, since it uses less digits than its factorization.

28399935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893337.

The product of its digits is 524880, while the sum is 48.

The square root of 28399935 is about 5329.1589392699. The cubic root of 28399935 is about 305.0978276173.

The spelling of 28399935 in words is "twenty-eight million, three hundred ninety-nine thousand, nine hundred thirty-five".