28694017 has 8 divisors (see below), whose sum is σ = 31969152. Its totient is φ = 25530000.

The previous prime is 28693993. The next prime is 28694027. The reversal of 28694017 is 71049682.

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 28694017 - 2¹¹ = 28691969 is a prime.

It is a super-2 number, since 2×28694017² = 1646693223192578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28694027) 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, 27234 + ... + 28267.

It is an arithmetic number, because the mean of its divisors is an integer number (3996144).

Almost surely, 2^28694017 is an apocalyptic number.

It is an amenable number.

28694017 is a deficient number, since it is larger than the sum of its proper divisors (3275135).

28694017 is a wasteful number, since it uses less digits than its factorization.

28694017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55559.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 28694017 is about 5356.6796618801. The cubic root of 28694017 is about 306.1473118440.

It can be divided in two parts, 2869 and 4017, that added together give a palindrome (6886).

The spelling of 28694017 in words is "twenty-eight million, six hundred ninety-four thousand, seventeen".