28891353 has 16 divisors (see below), whose sum is σ = 39344256. Its totient is φ = 18854400.

The previous prime is 28891319. The next prime is 28891363. The reversal of 28891353 is 35319882.

It is not a de Polignac number, because 28891353 - 2²⁰ = 27842777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28891363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28900 + ... + 29882.

It is an arithmetic number, because the mean of its divisors is an integer number (2459016).

Almost surely, 2^28891353 is an apocalyptic number.

It is an amenable number.

28891353 is a deficient number, since it is larger than the sum of its proper divisors (10452903).

28891353 is a wasteful number, since it uses less digits than its factorization.

28891353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its digits is 51840, while the sum is 39.

The square root of 28891353 is about 5375.0677205036. The cubic root of 28891353 is about 306.8475265591.

The spelling of 28891353 in words is "twenty-eight million, eight hundred ninety-one thousand, three hundred fifty-three".