28346736 has 80 divisors (see below), whose sum is σ = 82101888. Its totient is φ = 8352000.

The previous prime is 28346729. The next prime is 28346743. The reversal of 28346736 is 63764382.

It is an interprime number because it is at equal distance from previous prime (28346729) and next prime (28346743).

It is a junction number, because it is equal to n+sod(n) for n = 28346694 and 28346703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18811 + ... + 20261.

Almost surely, 2^28346736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28346736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41050944).

28346736 is an abundant number, since it is smaller than the sum of its proper divisors (53755152).

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

28346736 is a wasteful number, since it uses less digits than its factorization.

28346736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1504 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 28346736 is about 5324.1652866905. The cubic root of 28346736 is about 304.9072045928.

The spelling of 28346736 in words is "twenty-eight million, three hundred forty-six thousand, seven hundred thirty-six".