28313371 has 2 divisors, whose sum is σ = 28313372. Its totient is φ = 28313370.

The previous prime is 28313359. The next prime is 28313387. The reversal of 28313371 is 17331382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28313371 - 2⁵ = 28313339 is a prime.

It is not a weakly prime, because it can be changed into another prime (28313321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14156685 + 14156686.

It is an arithmetic number, because the mean of its divisors is an integer number (14156686).

Almost surely, 2^28313371 is an apocalyptic number.

28313371 is a deficient number, since it is larger than the sum of its proper divisors (1).

28313371 is an equidigital number, since it uses as much as digits as its factorization.

28313371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 28313371 is about 5321.0310091184. The cubic root of 28313371 is about 304.7875291695.

The spelling of 28313371 in words is "twenty-eight million, three hundred thirteen thousand, three hundred seventy-one".