28929345 has 8 divisors (see below), whose sum is σ = 46286976. Its totient is φ = 15428976.

The previous prime is 28929337. The next prime is 28929347. The reversal of 28929345 is 54392982.

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

It is not a de Polignac number, because 28929345 - 2³ = 28929337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28929297 and 28929306.

It is not an unprimeable number, because it can be changed into a prime (28929347) 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, 964297 + ... + 964326.

It is an arithmetic number, because the mean of its divisors is an integer number (5785872).

Almost surely, 2^28929345 is an apocalyptic number.

It is an amenable number.

28929345 is a deficient number, since it is larger than the sum of its proper divisors (17357631).

28929345 is a wasteful number, since it uses less digits than its factorization.

28929345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928631.

The product of its digits is 155520, while the sum is 42.

The square root of 28929345 is about 5378.6006544454. The cubic root of 28929345 is about 306.9819686878.

The spelling of 28929345 in words is "twenty-eight million, nine hundred twenty-nine thousand, three hundred forty-five".