28677434 has 8 divisors (see below), whose sum is σ = 43305300. Its totient is φ = 14242336.

The previous prime is 28677353. The next prime is 28677437. The reversal of 28677434 is 43477682.

It can be written as a sum of positive squares in 2 ways, for example, as 28590409 + 87025 = 5347^2 + 295^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28677391 and 28677400.

It is not an unprimeable number, because it can be changed into a prime (28677437) 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, 47819 + ... + 48414.

Almost surely, 2^28677434 is an apocalyptic number.

28677434 is a deficient number, since it is larger than the sum of its proper divisors (14627866).

28677434 is a wasteful number, since it uses less digits than its factorization.

28677434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96384.

The product of its digits is 225792, while the sum is 41.

The square root of 28677434 is about 5355.1315576744. The cubic root of 28677434 is about 306.0883237142.

It can be divided in two parts, 2867 and 7434, that added together give a palindrome (10301).

The spelling of 28677434 in words is "twenty-eight million, six hundred seventy-seven thousand, four hundred thirty-four".