28275836 has 6 divisors (see below), whose sum is σ = 49482720. Its totient is φ = 14137916.

The previous prime is 28275833. The next prime is 28275839. The reversal of 28275836 is 63857282.

It is an interprime number because it is at equal distance from previous prime (28275833) and next prime (28275839).

It is a junction number, because it is equal to n+sod(n) for n = 28275793 and 28275802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3534476 + ... + 3534483.

It is an arithmetic number, because the mean of its divisors is an integer number (8247120).

Almost surely, 2^28275836 is an apocalyptic number.

It is an amenable number.

28275836 is a deficient number, since it is larger than the sum of its proper divisors (21206884).

28275836 is a wasteful number, since it uses less digits than its factorization.

28275836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7068963 (or 7068961 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 28275836 is about 5317.5027973664. The cubic root of 28275836 is about 304.6527841279.

The spelling of 28275836 in words is "twenty-eight million, two hundred seventy-five thousand, eight hundred thirty-six".