28356950 has 24 divisors (see below), whose sum is σ = 53387208. Its totient is φ = 11204480.

The previous prime is 28356931. The next prime is 28356967. The reversal of 28356950 is 5965382.

It is a super-2 number, since 2×28356950² = 1608233226605000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

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, 734 + ... + 7566.

It is an arithmetic number, because the mean of its divisors is an integer number (2224467).

Almost surely, 2^28356950 is an apocalyptic number.

28356950 is a deficient number, since it is larger than the sum of its proper divisors (25030258).

28356950 is a wasteful number, since it uses less digits than its factorization.

28356950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6928 (or 6923 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 28356950 is about 5325.1244116922. The cubic root of 28356950 is about 304.9438219563.

The spelling of 28356950 in words is "twenty-eight million, three hundred fifty-six thousand, nine hundred fifty".