28714971 has 8 divisors (see below), whose sum is σ = 39951360. Its totient is φ = 18310952.

The previous prime is 28714969. The next prime is 28714991. The reversal of 28714971 is 17941782.

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 28714971 - 2¹ = 28714969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28714951) 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, 208011 + ... + 208148.

It is an arithmetic number, because the mean of its divisors is an integer number (4993920).

Almost surely, 2^28714971 is an apocalyptic number.

28714971 is a deficient number, since it is larger than the sum of its proper divisors (11236389).

28714971 is a wasteful number, since it uses less digits than its factorization.

28714971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416185.

The product of its digits is 28224, while the sum is 39.

The square root of 28714971 is about 5358.6351807153. The cubic root of 28714971 is about 306.2218157597.

The spelling of 28714971 in words is "twenty-eight million, seven hundred fourteen thousand, nine hundred seventy-one".