28469253 has 8 divisors (see below), whose sum is σ = 39183616. Its totient is φ = 18367200.

The previous prime is 28469227. The next prime is 28469257. The reversal of 28469253 is 35296482.

It is a happy number.

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

It is not a de Polignac number, because 28469253 - 2¹⁶ = 28403717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28469257) 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, 152968 + ... + 153153.

It is an arithmetic number, because the mean of its divisors is an integer number (4897952).

Almost surely, 2^28469253 is an apocalyptic number.

It is an amenable number.

28469253 is a deficient number, since it is larger than the sum of its proper divisors (10714363).

28469253 is a wasteful number, since it uses less digits than its factorization.

28469253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306155.

The product of its digits is 103680, while the sum is 39.

The square root of 28469253 is about 5335.6586285106. The cubic root of 28469253 is about 305.3458515184.

The spelling of 28469253 in words is "twenty-eight million, four hundred sixty-nine thousand, two hundred fifty-three".