28963896 has 96 divisors (see below), whose sum is σ = 80944560. Its totient is φ = 8626176.

The previous prime is 28963873. The next prime is 28963919. The reversal of 28963896 is 69836982.

It is an interprime number because it is at equal distance from previous prime (28963873) and next prime (28963919).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149976 + ... + 150168.

Almost surely, 2^28963896 is an apocalyptic number.

28963896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28963896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40472280).

28963896 is an abundant number, since it is smaller than the sum of its proper divisors (51980664).

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

28963896 is a wasteful number, since it uses less digits than its factorization.

28963896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 248 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 28963896 is about 5381.8115909051. The cubic root of 28963896 is about 307.1041320050.

The spelling of 28963896 in words is "twenty-eight million, nine hundred sixty-three thousand, eight hundred ninety-six".