28072675 has 18 divisors (see below), whose sum is σ = 35450732. Its totient is φ = 22051440.

The previous prime is 28072651. The next prime is 28072687. The reversal of 28072675 is 57627082.

It is not a de Polignac number, because 28072675 - 2¹³ = 28064483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 172144 + ... + 172306.

Almost surely, 2^28072675 is an apocalyptic number.

28072675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28072675 is a deficient number, since it is larger than the sum of its proper divisors (7378057).

28072675 is an equidigital number, since it uses as much as digits as its factorization.

28072675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 28072675 is about 5298.3653139435. The cubic root of 28072675 is about 303.9213893866.

The spelling of 28072675 in words is "twenty-eight million, seventy-two thousand, six hundred seventy-five".