28453671 has 6 divisors (see below), whose sum is σ = 41099760. Its totient is φ = 18969108.

The previous prime is 28453637. The next prime is 28453673. The reversal of 28453671 is 17635482.

It is not a de Polignac number, because 28453671 - 2⁷ = 28453543 is a prime.

It is a super-2 number, since 2×28453671² = 1619222786752482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28453673) 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 5 ways as a sum of consecutive naturals, for example, 1580751 + ... + 1580768.

It is an arithmetic number, because the mean of its divisors is an integer number (6849960).

Almost surely, 2^28453671 is an apocalyptic number.

28453671 is a deficient number, since it is larger than the sum of its proper divisors (12646089).

28453671 is a wasteful number, since it uses less digits than its factorization.

28453671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161525 (or 3161522 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28453671 is about 5334.1982527836. The cubic root of 28453671 is about 305.2901333094.

The spelling of 28453671 in words is "twenty-eight million, four hundred fifty-three thousand, six hundred seventy-one".