28976671 has 6 divisors (see below), whose sum is σ = 29179280. Its totient is φ = 28775436.

The previous prime is 28976663. The next prime is 28976677. The reversal of 28976671 is 17667982.

It is a happy number.

It is not a de Polignac number, because 28976671 - 2³ = 28976663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28976677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27370 + ... + 28408.

Almost surely, 2^28976671 is an apocalyptic number.

28976671 is a deficient number, since it is larger than the sum of its proper divisors (202609).

28976671 is an equidigital number, since it uses as much as digits as its factorization.

28976671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1206 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 28976671 is about 5382.9983280696. The cubic root of 28976671 is about 307.1492764684.

The spelling of 28976671 in words is "twenty-eight million, nine hundred seventy-six thousand, six hundred seventy-one".