28417896 has 96 divisors (see below), whose sum is σ = 84007560. Its totient is φ = 8626176.

The previous prime is 28417891. The next prime is 28417913. The reversal of 28417896 is 69871482.

It can be written as a sum of positive squares in 4 ways, for example, as 9180900 + 19236996 = 3030^2 + 4386^2 .

It is not an unprimeable number, because it can be changed into a prime (28417891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90636 + ... + 90948.

Almost surely, 2^28417896 is an apocalyptic number.

28417896 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 28417896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42003780).

28417896 is an abundant number, since it is smaller than the sum of its proper divisors (55589664).

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

28417896 is a wasteful number, since it uses less digits than its factorization.

28417896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 428 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 28417896 is about 5330.8438356418. The cubic root of 28417896 is about 305.1621318405.

The spelling of 28417896 in words is "twenty-eight million, four hundred seventeen thousand, eight hundred ninety-six".