28272358 has 4 divisors (see below), whose sum is σ = 42408540. Its totient is φ = 14136178.

The previous prime is 28272353. The next prime is 28272383. The reversal of 28272358 is 85327282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85327282 = 2 ⋅42663641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28272353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7068088 + ... + 7068091.

It is an arithmetic number, because the mean of its divisors is an integer number (10602135).

Almost surely, 2^28272358 is an apocalyptic number.

28272358 is a deficient number, since it is larger than the sum of its proper divisors (14136182).

28272358 is a wasteful number, since it uses less digits than its factorization.

28272358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14136181.

The product of its digits is 53760, while the sum is 37.

The square root of 28272358 is about 5317.1757541010. The cubic root of 28272358 is about 304.6402925924.

The spelling of 28272358 in words is "twenty-eight million, two hundred seventy-two thousand, three hundred fifty-eight".