28435677 has 4 divisors (see below), whose sum is σ = 37914240. Its totient is φ = 18957116.

The previous prime is 28435661. The next prime is 28435691. The reversal of 28435677 is 77653482.

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 a cyclic number.

It is not a de Polignac number, because 28435677 - 2⁴ = 28435661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28435657) 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, 4739277 + ... + 4739282.

It is an arithmetic number, because the mean of its divisors is an integer number (9478560).

Almost surely, 2^28435677 is an apocalyptic number.

It is an amenable number.

28435677 is a deficient number, since it is larger than the sum of its proper divisors (9478563).

28435677 is an equidigital number, since it uses as much as digits as its factorization.

28435677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9478562.

The product of its digits is 282240, while the sum is 42.

The square root of 28435677 is about 5332.5113220696. The cubic root of 28435677 is about 305.2257649417.

The spelling of 28435677 in words is "twenty-eight million, four hundred thirty-five thousand, six hundred seventy-seven".