28789953 has 12 divisors (see below), whose sum is σ = 39759408. Its totient is φ = 18529840.

The previous prime is 28789933. The next prime is 28789973. The reversal of 28789953 is 35998782.

It is an interprime number because it is at equal distance from previous prime (28789933) and next prime (28789973).

It is not a de Polignac number, because 28789953 - 2⁶ = 28789889 is a prime.

It is a super-2 number, since 2×28789953² = 1657722787484418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28789896 and 28789905.

It is not an unprimeable number, because it can be changed into a prime (28789903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3183 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (3313284).

Almost surely, 2^28789953 is an apocalyptic number.

It is an amenable number.

28789953 is a deficient number, since it is larger than the sum of its proper divisors (10969455).

28789953 is a wasteful number, since it uses less digits than its factorization.

28789953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472 (or 11443 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 28789953 is about 5365.6269903898. The cubic root of 28789953 is about 306.4881247800.

The spelling of 28789953 in words is "twenty-eight million, seven hundred eighty-nine thousand, nine hundred fifty-three".