28115358 has 8 divisors (see below), whose sum is σ = 56230728. Its totient is φ = 9371784.

The previous prime is 28115323. The next prime is 28115359. The reversal of 28115358 is 85351182.

It is a happy number.

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

28115358 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28115359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342941 + ... + 2342952.

It is an arithmetic number, because the mean of its divisors is an integer number (7028841).

Almost surely, 2^28115358 is an apocalyptic number.

28115358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28115358 is a wasteful number, since it uses less digits than its factorization.

28115358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685898.

The product of its digits is 9600, while the sum is 33.

The square root of 28115358 is about 5302.3917244957. The cubic root of 28115358 is about 304.0753434560.

The spelling of 28115358 in words is "twenty-eight million, one hundred fifteen thousand, three hundred fifty-eight".