28694914 has 4 divisors (see below), whose sum is σ = 43042374. Its totient is φ = 14347456.

The previous prime is 28694903. The next prime is 28694917. The reversal of 28694914 is 41949682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 6932689 = 4665^2 + 2633^2 .

It is not an unprimeable number, because it can be changed into a prime (28694917) by changing a digit.

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 as a sum of consecutive naturals, namely, 7173727 + ... + 7173730.

Almost surely, 2^28694914 is an apocalyptic number.

28694914 is a deficient number, since it is larger than the sum of its proper divisors (14347460).

28694914 is a wasteful number, since it uses less digits than its factorization.

28694914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347459.

The product of its digits is 124416, while the sum is 43.

The square root of 28694914 is about 5356.7633884651. The cubic root of 28694914 is about 306.1505019548.

The spelling of 28694914 in words is "twenty-eight million, six hundred ninety-four thousand, nine hundred fourteen".