28628106 has 16 divisors (see below), whose sum is σ = 61660704. Its totient is φ = 8808624.

The previous prime is 28628081. The next prime is 28628107. The reversal of 28628106 is 60182682.

It is not an unprimeable number, because it can be changed into a prime (28628107) 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, 183436 + ... + 183591.

It is an arithmetic number, because the mean of its divisors is an integer number (3853794).

Almost surely, 2^28628106 is an apocalyptic number.

28628106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28628106 is an abundant number, since it is smaller than the sum of its proper divisors (33032598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28628106 is a wasteful number, since it uses less digits than its factorization.

28628106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367045.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 28628106 is about 5350.5238995822. The cubic root of 28628106 is about 305.9127223429.

The spelling of 28628106 in words is "twenty-eight million, six hundred twenty-eight thousand, one hundred six".