28760971 has 8 divisors (see below), whose sum is σ = 30173184. Its totient is φ = 27362280.

The previous prime is 28760929. The next prime is 28760981. The reversal of 28760971 is 17906782.

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 28760971 - 2⁷ = 28760843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28760981) 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, 1120 + ... + 7666.

It is an arithmetic number, because the mean of its divisors is an integer number (3771648).

Almost surely, 2^28760971 is an apocalyptic number.

28760971 is a deficient number, since it is larger than the sum of its proper divisors (1412213).

28760971 is a wasteful number, since it uses less digits than its factorization.

28760971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 28760971 is about 5362.9256008265. The cubic root of 28760971 is about 306.3852460531.

The spelling of 28760971 in words is "twenty-eight million, seven hundred sixty thousand, nine hundred seventy-one".