28949716 has 12 divisors (see below), whose sum is σ = 50702260. Its totient is φ = 14463360.

The previous prime is 28949699. The next prime is 28949717. The reversal of 28949716 is 61794982.

It can be written as a sum of positive squares in 2 ways, for example, as 7290000 + 21659716 = 2700^2 + 4654^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28949717) 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, 5500 + ... + 9388.

Almost surely, 2^28949716 is an apocalyptic number.

It is an amenable number.

28949716 is a deficient number, since it is larger than the sum of its proper divisors (21752544).

28949716 is a wasteful number, since it uses less digits than its factorization.

28949716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754 (or 5752 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 28949716 is about 5380.4940293620. The cubic root of 28949716 is about 307.0540069869.

It can be divided in two parts, 289 and 49716, that added together give a palindrome (50005).

The spelling of 28949716 in words is "twenty-eight million, nine hundred forty-nine thousand, seven hundred sixteen".