28619760 has 80 divisors (see below), whose sum is σ = 95556384. Its totient is φ = 7044096.

The previous prime is 28619743. The next prime is 28619783. The reversal of 28619760 is 6791682.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×28619760³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 1467 + ... + 7706.

Almost surely, 2^28619760 is an apocalyptic number.

28619760 is a gapful number since it is divisible by the number (20) 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 28619760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47778192).

28619760 is an abundant number, since it is smaller than the sum of its proper divisors (66936624).

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

28619760 is a wasteful number, since it uses less digits than its factorization.

28619760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9202 (or 9196 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 28619760 is about 5349.7439191049. The cubic root of 28619760 is about 305.8829917030.

It can be divided in two parts, 2861 and 9760, that added together give a palindrome (12621).

The spelling of 28619760 in words is "twenty-eight million, six hundred nineteen thousand, seven hundred sixty".