28635122 has 8 divisors (see below), whose sum is σ = 44433900. Its totient is φ = 13823824.

The previous prime is 28635091. The next prime is 28635137. The reversal of 28635122 is 22153682.

It can be written as a sum of positive squares in 2 ways, for example, as 25391521 + 3243601 = 5039^2 + 1801^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246797 + ... + 246912.

Almost surely, 2^28635122 is an apocalyptic number.

28635122 is a deficient number, since it is larger than the sum of its proper divisors (15798778).

28635122 is a wasteful number, since it uses less digits than its factorization.

28635122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493740.

The product of its digits is 5760, while the sum is 29.

The square root of 28635122 is about 5351.1794961485. The cubic root of 28635122 is about 305.9377107040.

The spelling of 28635122 in words is "twenty-eight million, six hundred thirty-five thousand, one hundred twenty-two".