28261064 has 32 divisors (see below), whose sum is σ = 57288000. Its totient is φ = 12992832.

The previous prime is 28261061. The next prime is 28261067. The reversal of 28261064 is 46016282.

It is an interprime number because it is at equal distance from previous prime (28261061) and next prime (28261067).

It is not an unprimeable number, because it can be changed into a prime (28261061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45347 + ... + 45965.

It is an arithmetic number, because the mean of its divisors is an integer number (1790250).

Almost surely, 2^28261064 is an apocalyptic number.

It is an amenable number.

28261064 is an abundant number, since it is smaller than the sum of its proper divisors (29026936).

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

28261064 is a wasteful number, since it uses less digits than its factorization.

28261064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 28261064 is about 5316.1136180484. The cubic root of 28261064 is about 304.5997221560.

The spelling of 28261064 in words is "twenty-eight million, two hundred sixty-one thousand, sixty-four".