28970935 has 8 divisors (see below), whose sum is σ = 39731616. Its totient is φ = 19865760.

The previous prime is 28970891. The next prime is 28970939. The reversal of 28970935 is 53907982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28970935 - 2¹¹ = 28968887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28970891 and 28970900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28970939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413836 + ... + 413905.

It is an arithmetic number, because the mean of its divisors is an integer number (4966452).

Almost surely, 2^28970935 is an apocalyptic number.

28970935 is a deficient number, since it is larger than the sum of its proper divisors (10760681).

28970935 is an equidigital number, since it uses as much as digits as its factorization.

28970935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827753.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 28970935 is about 5382.4655131269. The cubic root of 28970935 is about 307.1290081577.

The spelling of 28970935 in words is "twenty-eight million, nine hundred seventy thousand, nine hundred thirty-five".