28277097 has 8 divisors (see below), whose sum is σ = 39342144. Its totient is φ = 18031728.

The previous prime is 28277089. The next prime is 28277141. The reversal of 28277097 is 79077282.

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

It is not a de Polignac number, because 28277097 - 2³ = 28277089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28277017) 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, 204838 + ... + 204975.

It is an arithmetic number, because the mean of its divisors is an integer number (4917768).

Almost surely, 2^28277097 is an apocalyptic number.

It is an amenable number.

28277097 is a deficient number, since it is larger than the sum of its proper divisors (11065047).

28277097 is a wasteful number, since it uses less digits than its factorization.

28277097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409839.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 28277097 is about 5317.6213667391. The cubic root of 28277097 is about 304.6573128646.

The spelling of 28277097 in words is "twenty-eight million, two hundred seventy-seven thousand, ninety-seven".