28241953 has 4 divisors (see below), whose sum is σ = 29469888. Its totient is φ = 27014020.

The previous prime is 28241933. The next prime is 28241957. The reversal of 28241953 is 35914282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28241953 - 2⁵ = 28241921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28241957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613933 + ... + 613978.

It is an arithmetic number, because the mean of its divisors is an integer number (7367472).

Almost surely, 2^28241953 is an apocalyptic number.

28241953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28241953 is a deficient number, since it is larger than the sum of its proper divisors (1227935).

28241953 is a wasteful number, since it uses less digits than its factorization.

28241953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227934.

The product of its digits is 17280, while the sum is 34.

The square root of 28241953 is about 5314.3158543692. The cubic root of 28241953 is about 304.5310467758.

The spelling of 28241953 in words is "twenty-eight million, two hundred forty-one thousand, nine hundred fifty-three".