28031059 has 8 divisors (see below), whose sum is σ = 32288768. Its totient is φ = 23836680.

The previous prime is 28031057. The next prime is 28031071. The reversal of 28031059 is 95013082.

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

It is not a de Polignac number, because 28031059 - 2¹ = 28031057 is a prime.

It is a super-2 number, since 2×28031059² = 1571480537322962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28031053) 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, 14877 + ... + 16654.

It is an arithmetic number, because the mean of its divisors is an integer number (4036096).

Almost surely, 2^28031059 is an apocalyptic number.

28031059 is a deficient number, since it is larger than the sum of its proper divisors (4257709).

28031059 is a wasteful number, since it uses less digits than its factorization.

28031059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31665.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 28031059 is about 5294.4366083654. The cubic root of 28031059 is about 303.7711335756.

The spelling of 28031059 in words is "twenty-eight million, thirty-one thousand, fifty-nine".