28069950 has 24 divisors (see below), whose sum is σ = 69613848. Its totient is φ = 7485280.

The previous prime is 28069919. The next prime is 28069981. The reversal of 28069950 is 5996082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28069919) and next prime (28069981).

It is a junction number, because it is equal to n+sod(n) for n = 28069899 and 28069908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93417 + ... + 93716.

It is an arithmetic number, because the mean of its divisors is an integer number (2900577).

Almost surely, 2^28069950 is an apocalyptic number.

28069950 is an abundant number, since it is smaller than the sum of its proper divisors (41543898).

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

28069950 is a wasteful number, since it uses less digits than its factorization.

28069950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187148 (or 187143 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 28069950 is about 5298.1081529165. The cubic root of 28069950 is about 303.9115552379.

The spelling of 28069950 in words is "twenty-eight million, sixty-nine thousand, nine hundred fifty".