28901695 has 8 divisors (see below), whose sum is σ = 35336736. Its totient is φ = 22684896.

The previous prime is 28901669. The next prime is 28901707. The reversal of 28901695 is 59610982.

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

It is a cyclic number.

It is not a de Polignac number, because 28901695 - 2¹³ = 28893503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54267 + ... + 54796.

It is an arithmetic number, because the mean of its divisors is an integer number (4417092).

Almost surely, 2^28901695 is an apocalyptic number.

28901695 is a deficient number, since it is larger than the sum of its proper divisors (6435041).

28901695 is a wasteful number, since it uses less digits than its factorization.

28901695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109121.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 28901695 is about 5376.0296688169. The cubic root of 28901695 is about 306.8841354196.

The spelling of 28901695 in words is "twenty-eight million, nine hundred one thousand, six hundred ninety-five".