28053957 has 8 divisors (see below), whose sum is σ = 37825920. Its totient is φ = 18492320.

The previous prime is 28053941. The next prime is 28053979. The reversal of 28053957 is 75935082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28053957 - 2⁴ = 28053941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52269 + ... + 52802.

It is an arithmetic number, because the mean of its divisors is an integer number (4728240).

Almost surely, 2^28053957 is an apocalyptic number.

It is an amenable number.

28053957 is a deficient number, since it is larger than the sum of its proper divisors (9771963).

28053957 is a wasteful number, since it uses less digits than its factorization.

28053957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105163.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 28053957 is about 5296.5986255332. The cubic root of 28053957 is about 303.8538258762.

The spelling of 28053957 in words is "twenty-eight million, fifty-three thousand, nine hundred fifty-seven".