28715435 has 8 divisors (see below), whose sum is σ = 39381216. Its totient is φ = 19690560.

The previous prime is 28715419. The next prime is 28715437. The reversal of 28715435 is 53451782.

It is a happy number.

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

It is not a de Polignac number, because 28715435 - 2⁴ = 28715419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 820441 = 28715435 / (2 + 8 + 7 + 1 + 5 + 4 + 3 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 28715395 and 28715404.

It is not an unprimeable number, because it can be changed into a prime (28715437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410186 + ... + 410255.

It is an arithmetic number, because the mean of its divisors is an integer number (4922652).

Almost surely, 2^28715435 is an apocalyptic number.

28715435 is a deficient number, since it is larger than the sum of its proper divisors (10665781).

28715435 is an equidigital number, since it uses as much as digits as its factorization.

28715435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820453.

The product of its digits is 33600, while the sum is 35.

The square root of 28715435 is about 5358.6784751466. The cubic root of 28715435 is about 306.2234651451.

The spelling of 28715435 in words is "twenty-eight million, seven hundred fifteen thousand, four hundred thirty-five".