28765410 has 64 divisors (see below), whose sum is σ = 73654272. Its totient is φ = 7173056.

The previous prime is 28765403. The next prime is 28765417. The reversal of 28765410 is 1456782.

It is an interprime number because it is at equal distance from previous prime (28765403) and next prime (28765417).

It is not an unprimeable number, because it can be changed into a prime (28765417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31987 + ... + 32873.

It is an arithmetic number, because the mean of its divisors is an integer number (1150848).

Almost surely, 2^28765410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28765410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36827136).

28765410 is an abundant number, since it is smaller than the sum of its proper divisors (44888862).

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

28765410 is a wasteful number, since it uses less digits than its factorization.

28765410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28765410 is about 5363.3394447862. The cubic root of 28765410 is about 306.4010078546.

The spelling of 28765410 in words is "twenty-eight million, seven hundred sixty-five thousand, four hundred ten".