28301929 has 8 divisors (see below), whose sum is σ = 29281280. Its totient is φ = 27333936.

The previous prime is 28301893. The next prime is 28301951. The reversal of 28301929 is 92910382.

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 28301929 - 2¹³ = 28293737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28301894 and 28301903.

It is not an unprimeable number, because it can be changed into a prime (28301989) 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, 2392 + ... + 7894.

It is an arithmetic number, because the mean of its divisors is an integer number (3660160).

Almost surely, 2^28301929 is an apocalyptic number.

It is an amenable number.

28301929 is a deficient number, since it is larger than the sum of its proper divisors (979351).

28301929 is a wasteful number, since it uses less digits than its factorization.

28301929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 28301929 is about 5319.9557328985. The cubic root of 28301929 is about 304.7464667236.

The spelling of 28301929 in words is "twenty-eight million, three hundred one thousand, nine hundred twenty-nine".