28347036 has 24 divisors (see below), whose sum is σ = 68424720. Its totient is φ = 9123072.

The previous prime is 28347029. The next prime is 28347043. The reversal of 28347036 is 63074382.

It is an interprime number because it is at equal distance from previous prime (28347029) and next prime (28347043).

It is a junction number, because it is equal to n+sod(n) for n = 28346988 and 28347006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40381 + ... + 41076.

It is an arithmetic number, because the mean of its divisors is an integer number (2851030).

Almost surely, 2^28347036 is an apocalyptic number.

It is an amenable number.

28347036 is an abundant number, since it is smaller than the sum of its proper divisors (40077684).

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

28347036 is a wasteful number, since it uses less digits than its factorization.

28347036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81493 (or 81491 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 28347036 is about 5324.1934600463. The cubic root of 28347036 is about 304.9082802233.

It can be divided in two parts, 2834 and 7036, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 28347036 in words is "twenty-eight million, three hundred forty-seven thousand, thirty-six".