28946005 has 8 divisors (see below), whose sum is σ = 37893024. Its totient is φ = 21051600.

The previous prime is 28945993. The next prime is 28946011. The reversal of 28946005 is 50064982.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-28946005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263091 + ... + 263200.

It is an arithmetic number, because the mean of its divisors is an integer number (4736628).

Almost surely, 2^28946005 is an apocalyptic number.

It is an amenable number.

28946005 is a deficient number, since it is larger than the sum of its proper divisors (8947019).

28946005 is a wasteful number, since it uses less digits than its factorization.

28946005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526307.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 28946005 is about 5380.1491615010. The cubic root of 28946005 is about 307.0408862351.

The spelling of 28946005 in words is "twenty-eight million, nine hundred forty-six thousand, five".