28895677 has 4 divisors (see below), whose sum is σ = 28907296. Its totient is φ = 28884060.

The previous prime is 28895623. The next prime is 28895683. The reversal of 28895677 is 77659882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28895677 - 2⁷ = 28895549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399 + ... + 7612.

It is an arithmetic number, because the mean of its divisors is an integer number (7226824).

Almost surely, 2^28895677 is an apocalyptic number.

It is an amenable number.

28895677 is a deficient number, since it is larger than the sum of its proper divisors (11619).

28895677 is an equidigital number, since it uses as much as digits as its factorization.

28895677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11618.

The product of its digits is 1693440, while the sum is 52.

The square root of 28895677 is about 5375.4699329454. The cubic root of 28895677 is about 306.8628338209.

The spelling of 28895677 in words is "twenty-eight million, eight hundred ninety-five thousand, six hundred seventy-seven".