28379088 has 30 divisors (see below), whose sum is σ = 79422434. Its totient is φ = 9459648.

The previous prime is 28379083. The next prime is 28379089. The reversal of 28379088 is 88097382.

It can be written as a sum of positive squares in only one way, i.e., 27751824 + 627264 = 5268^2 + 792^2 .

It is a super-5 number, since 5×28379088⁵ (a number of 38 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28379083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98395 + ... + 98682.

Almost surely, 2^28379088 is an apocalyptic number.

It is an amenable number.

28379088 is an abundant number, since it is smaller than the sum of its proper divisors (51043346).

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

28379088 is a wasteful number, since it uses less digits than its factorization.

28379088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197091 (or 197082 counting only the distinct ones).

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

The square root of 28379088 is about 5327.2026430388. The cubic root of 28379088 is about 305.0231568909.

The spelling of 28379088 in words is "twenty-eight million, three hundred seventy-nine thousand, eighty-eight".