28071675 has 72 divisors (see below), whose sum is σ = 54840240. Its totient is φ = 13670400.

The previous prime is 28071671. The next prime is 28071689. The reversal of 28071675 is 57617082.

It is not a de Polignac number, because 28071675 - 2² = 28071671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28071671) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 156736 + ... + 156914.

It is an arithmetic number, because the mean of its divisors is an integer number (761670).

Almost surely, 2^28071675 is an apocalyptic number.

28071675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28071675 is a deficient number, since it is larger than the sum of its proper divisors (26768565).

28071675 is a wasteful number, since it uses less digits than its factorization.

28071675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 28071675 is about 5298.2709443742. The cubic root of 28071675 is about 303.9177805986.

The spelling of 28071675 in words is "twenty-eight million, seventy-one thousand, six hundred seventy-five".