28575351 has 24 divisors (see below), whose sum is σ = 49948704. Its totient is φ = 15367680.

The previous prime is 28575343. The next prime is 28575377. The reversal of 28575351 is 15357582.

It is not a de Polignac number, because 28575351 - 2³ = 28575343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28575301) 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 23 ways as a sum of consecutive naturals, for example, 12270 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (2081196).

Almost surely, 2^28575351 is an apocalyptic number.

28575351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28575351 is a deficient number, since it is larger than the sum of its proper divisors (21373353).

28575351 is a wasteful number, since it uses less digits than its factorization.

28575351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26711 (or 26708 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 28575351 is about 5345.5917352525. The cubic root of 28575351 is about 305.7246979243.

The spelling of 28575351 in words is "twenty-eight million, five hundred seventy-five thousand, three hundred fifty-one".