28053723 has 8 divisors (see below), whose sum is σ = 39605328. Its totient is φ = 17602304.

The previous prime is 28053713. The next prime is 28053731. The reversal of 28053723 is 32735082.

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 28053723 - 2¹⁷ = 27922651 is a prime.

It is a super-2 number, since 2×28053723² = 1574022748321458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28053713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274986 + ... + 275087.

It is an arithmetic number, because the mean of its divisors is an integer number (4950666).

Almost surely, 2^28053723 is an apocalyptic number.

28053723 is a deficient number, since it is larger than the sum of its proper divisors (11551605).

28053723 is a wasteful number, since it uses less digits than its factorization.

28053723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550093.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 28053723 is about 5296.5765358390. The cubic root of 28053723 is about 303.8529810519.

The spelling of 28053723 in words is "twenty-eight million, fifty-three thousand, seven hundred twenty-three".