28345914 has 12 divisors (see below), whose sum is σ = 61416186. Its totient is φ = 9448632.

The previous prime is 28345897. The next prime is 28345927. The reversal of 28345914 is 41954382.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 3515625 = 4983^2 + 1875^2 .

It is a Curzon number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 787369 + ... + 787404.

Almost surely, 2^28345914 is an apocalyptic number.

28345914 is an abundant number, since it is smaller than the sum of its proper divisors (33070272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28345914 is a wasteful number, since it uses less digits than its factorization.

28345914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574781 (or 1574778 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 28345914 is about 5324.0880909316. The cubic root of 28345914 is about 304.9042573265.

The spelling of 28345914 in words is "twenty-eight million, three hundred forty-five thousand, nine hundred fourteen".