28674777 has 4 divisors (see below), whose sum is σ = 38233040. Its totient is φ = 19116516.

The previous prime is 28674773. The next prime is 28674787. The reversal of 28674777 is 77747682.

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.

It is not a de Polignac number, because 28674777 - 2² = 28674773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28674773) 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, 4779127 + ... + 4779132.

It is an arithmetic number, because the mean of its divisors is an integer number (9558260).

Almost surely, 2^28674777 is an apocalyptic number.

It is an amenable number.

28674777 is a deficient number, since it is larger than the sum of its proper divisors (9558263).

28674777 is an equidigital number, since it uses as much as digits as its factorization.

28674777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558262.

The product of its digits is 921984, while the sum is 48.

The square root of 28674777 is about 5354.8834721215. The cubic root of 28674777 is about 306.0788702674.

The spelling of 28674777 in words is "twenty-eight million, six hundred seventy-four thousand, seven hundred seventy-seven".