28165376 has 36 divisors (see below), whose sum is σ = 56567700. Its totient is φ = 13996032.

The previous prime is 28165373. The next prime is 28165381. The reversal of 28165376 is 67356182.

It can be written as a sum of positive squares in 2 ways, for example, as 13542400 + 14622976 = 3680^2 + 3824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28165373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68660 + ... + 69068.

It is an arithmetic number, because the mean of its divisors is an integer number (1571325).

Almost surely, 2^28165376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28165376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28283850).

28165376 is an abundant number, since it is smaller than the sum of its proper divisors (28402324).

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

28165376 is an equidigital number, since it uses as much as digits as its factorization.

28165376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 680 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 28165376 is about 5307.1061794541. The cubic root of 28165376 is about 304.2555561143.

It can be divided in two parts, 2816 and 5376, that added together give a 13-th power (8192 = 2¹³).

The spelling of 28165376 in words is "twenty-eight million, one hundred sixty-five thousand, three hundred seventy-six".