28344951 has 24 divisors (see below), whose sum is σ = 42791760. Its totient is φ = 18543168.

The previous prime is 28344949. The next prime is 28344961. The reversal of 28344951 is 15944382.

It is not a de Polignac number, because 28344951 - 2¹ = 28344949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28344961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143785 + ... + 143981.

It is an arithmetic number, because the mean of its divisors is an integer number (1782990).

Almost surely, 2^28344951 is an apocalyptic number.

28344951 is a deficient number, since it is larger than the sum of its proper divisors (14446809).

28344951 is an equidigital number, since it uses as much as digits as its factorization.

28344951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 273 counting only the distinct ones).

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

The square root of 28344951 is about 5323.9976521407. The cubic root of 28344951 is about 304.9008044346.

The spelling of 28344951 in words is "twenty-eight million, three hundred forty-four thousand, nine hundred fifty-one".