28072935 has 24 divisors (see below), whose sum is σ = 53084304. Its totient is φ = 13610880.

The previous prime is 28072927. The next prime is 28072943. The reversal of 28072935 is 53927082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28072927) and next prime (28072943).

It is not a de Polignac number, because 28072935 - 2³ = 28072927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28072935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27862 + ... + 28851.

It is an arithmetic number, because the mean of its divisors is an integer number (2211846).

Almost surely, 2^28072935 is an apocalyptic number.

28072935 is a deficient number, since it is larger than the sum of its proper divisors (25011369).

28072935 is a wasteful number, since it uses less digits than its factorization.

28072935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56735 (or 56732 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 28072935 is about 5298.3898497562. The cubic root of 28072935 is about 303.9223276575.

The spelling of 28072935 in words is "twenty-eight million, seventy-two thousand, nine hundred thirty-five".