28370575 has 12 divisors (see below), whose sum is σ = 35274528. Its totient is φ = 22635200.

The previous prime is 28370557. The next prime is 28370621. The reversal of 28370575 is 57507382.

It is not a de Polignac number, because 28370575 - 2⁵ = 28370543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9459 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (2939544).

Almost surely, 2^28370575 is an apocalyptic number.

28370575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28370575 is a deficient number, since it is larger than the sum of its proper divisors (6903953).

28370575 is a wasteful number, since it uses less digits than its factorization.

28370575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 28370575 is about 5326.4035708910. The cubic root of 28370575 is about 304.9926541275.

The spelling of 28370575 in words is "twenty-eight million, three hundred seventy thousand, five hundred seventy-five".