28726435 has 8 divisors (see below), whose sum is σ = 34720560. Its totient is φ = 22815264.

The previous prime is 28726421. The next prime is 28726459. The reversal of 28726435 is 53462782.

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

It is a cyclic number.

It is not a de Polignac number, because 28726435 - 2⁵ = 28726403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28726394 and 28726403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19972 + ... + 21361.

It is an arithmetic number, because the mean of its divisors is an integer number (4340070).

Almost surely, 2^28726435 is an apocalyptic number.

28726435 is a deficient number, since it is larger than the sum of its proper divisors (5994125).

28726435 is a wasteful number, since it uses less digits than its factorization.

28726435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41477.

The product of its digits is 80640, while the sum is 37.

The square root of 28726435 is about 5359.7047493309. The cubic root of 28726435 is about 306.2625617505.

It can be divided in two parts, 28726 and 435, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 28726435 in words is "twenty-eight million, seven hundred twenty-six thousand, four hundred thirty-five".