28995918 has 32 divisors (see below), whose sum is σ = 66583296. Its totient is φ = 8246208.

The previous prime is 28995917. The next prime is 28995949. The reversal of 28995918 is 81959982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28995917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8305 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (2080728).

Almost surely, 2^28995918 is an apocalyptic number.

28995918 is an abundant number, since it is smaller than the sum of its proper divisors (37587378).

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

28995918 is a wasteful number, since it uses less digits than its factorization.

28995918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its digits is 466560, while the sum is 51.

The square root of 28995918 is about 5384.7857896113. The cubic root of 28995918 is about 307.2172667229.

The spelling of 28995918 in words is "twenty-eight million, nine hundred ninety-five thousand, nine hundred eighteen".