28352664 has 48 divisors (see below), whose sum is σ = 77368200. Its totient is φ = 9379584.

The previous prime is 28352659. The next prime is 28352677. The reversal of 28352664 is 46625382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8592 + ... + 11424.

Almost surely, 2^28352664 is an apocalyptic number.

28352664 is a gapful number since it is divisible by the number (24) 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 28352664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38684100).

28352664 is an abundant number, since it is smaller than the sum of its proper divisors (49015536).

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

28352664 is a wasteful number, since it uses less digits than its factorization.

28352664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984 (or 2977 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28352664 is about 5324.7219645724. The cubic root of 28352664 is about 304.9284576444.

The spelling of 28352664 in words is "twenty-eight million, three hundred fifty-two thousand, six hundred sixty-four".