28455535 has 8 divisors (see below), whose sum is σ = 36155376. Its totient is φ = 21425280.

The previous prime is 28455533. The next prime is 28455589. The reversal of 28455535 is 53555482.

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 28455535 - 2¹ = 28455533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28455494 and 28455503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28455533) 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, 167301 + ... + 167470.

It is an arithmetic number, because the mean of its divisors is an integer number (4519422).

Almost surely, 2^28455535 is an apocalyptic number.

28455535 is a deficient number, since it is larger than the sum of its proper divisors (7699841).

28455535 is a wasteful number, since it uses less digits than its factorization.

28455535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334793.

The product of its digits is 120000, while the sum is 37.

The square root of 28455535 is about 5334.3729715872. The cubic root of 28455535 is about 305.2967996827.

The spelling of 28455535 in words is "twenty-eight million, four hundred fifty-five thousand, five hundred thirty-five".