28379950 has 24 divisors (see below), whose sum is σ = 53264448. Its totient is φ = 11249280.

The previous prime is 28379947. The next prime is 28379959. The reversal of 28379950 is 5997382.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28379897 and 28379906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28379959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3139 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (2219352).

Almost surely, 2^28379950 is an apocalyptic number.

28379950 is a deficient number, since it is larger than the sum of its proper divisors (24884498).

28379950 is a wasteful number, since it uses less digits than its factorization.

28379950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148 (or 5143 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 28379950 is about 5327.2835479257. The cubic root of 28379950 is about 305.0262451661.

The spelling of 28379950 in words is "twenty-eight million, three hundred seventy-nine thousand, nine hundred fifty".