28847371 has 8 divisors (see below), whose sum is σ = 33433344. Its totient is φ = 24377640.

The previous prime is 28847369. The next prime is 28847389. The reversal of 28847371 is 17374882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28847371 - 2¹ = 28847369 is a prime.

It is a super-2 number, since 2×28847371² = 1664341627223282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28847311) 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, 28525 + ... + 29518.

It is an arithmetic number, because the mean of its divisors is an integer number (4179168).

Almost surely, 2^28847371 is an apocalyptic number.

28847371 is a deficient number, since it is larger than the sum of its proper divisors (4585973).

28847371 is an equidigital number, since it uses as much as digits as its factorization.

28847371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58121.

The product of its digits is 75264, while the sum is 40.

The square root of 28847371 is about 5370.9748649570. The cubic root of 28847371 is about 306.6917403622.

The spelling of 28847371 in words is "twenty-eight million, eight hundred forty-seven thousand, three hundred seventy-one".