28976649 has 8 divisors (see below), whose sum is σ = 41607552. Its totient is φ = 17831760.

The previous prime is 28976639. The next prime is 28976659. The reversal of 28976649 is 94667982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28976639) and next prime (28976659).

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

It is not a de Polignac number, because 28976649 - 2⁵ = 28976617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28976609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371457 + ... + 371534.

It is an arithmetic number, because the mean of its divisors is an integer number (5200944).

Almost surely, 2^28976649 is an apocalyptic number.

It is an amenable number.

28976649 is a deficient number, since it is larger than the sum of its proper divisors (12630903).

28976649 is a wasteful number, since it uses less digits than its factorization.

28976649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743007.

The product of its digits is 1306368, while the sum is 51.

The square root of 28976649 is about 5382.9962845984. The cubic root of 28976649 is about 307.1491987359.

The spelling of 28976649 in words is "twenty-eight million, nine hundred seventy-six thousand, six hundred forty-nine".