28296994 has 8 divisors (see below), whose sum is σ = 46304208. Its totient is φ = 12862260.

The previous prime is 28296991. The next prime is 28297013. The reversal of 28296994 is 49969282.

It is a happy number.

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

It is a super-3 number, since 3×28296994³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28296991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643092 + ... + 643135.

It is an arithmetic number, because the mean of its divisors is an integer number (5788026).

Almost surely, 2^28296994 is an apocalyptic number.

28296994 is a deficient number, since it is larger than the sum of its proper divisors (18007214).

28296994 is a wasteful number, since it uses less digits than its factorization.

28296994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286240.

The product of its digits is 559872, while the sum is 49.

The square root of 28296994 is about 5319.4918930289. The cubic root of 28296994 is about 304.7287528400.

The spelling of 28296994 in words is "twenty-eight million, two hundred ninety-six thousand, nine hundred ninety-four".