28466577 has 12 divisors (see below), whose sum is σ = 41180880. Its totient is φ = 18948888.

The previous prime is 28466567. The next prime is 28466591. The reversal of 28466577 is 77566482.

It is not a de Polignac number, because 28466577 - 2⁶ = 28466513 is a prime.

It is a super-3 number, since 3×28466577³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28466507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5074 + ... + 9092.

It is an arithmetic number, because the mean of its divisors is an integer number (3431740).

Almost surely, 2^28466577 is an apocalyptic number.

It is an amenable number.

28466577 is a deficient number, since it is larger than the sum of its proper divisors (12714303).

28466577 is a wasteful number, since it uses less digits than its factorization.

28466577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812 (or 4809 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 28466577 is about 5335.4078569496. The cubic root of 28466577 is about 305.3362841077.

The spelling of 28466577 in words is "twenty-eight million, four hundred sixty-six thousand, five hundred seventy-seven".