28411575 has 12 divisors (see below), whose sum is σ = 46973928. Its totient is φ = 15152800.

The previous prime is 28411571. The next prime is 28411583. The reversal of 28411575 is 57511482.

It is not a de Polignac number, because 28411575 - 2² = 28411571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28411571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189336 + ... + 189485.

It is an arithmetic number, because the mean of its divisors is an integer number (3914494).

Almost surely, 2^28411575 is an apocalyptic number.

28411575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28411575 is a deficient number, since it is larger than the sum of its proper divisors (18562353).

28411575 is a wasteful number, since it uses less digits than its factorization.

28411575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378834 (or 378829 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 28411575 is about 5330.2509321795. The cubic root of 28411575 is about 305.1395043986.

The spelling of 28411575 in words is "twenty-eight million, four hundred eleven thousand, five hundred seventy-five".