28950994 has 4 divisors (see below), whose sum is σ = 43426494. Its totient is φ = 14475496.

The previous prime is 28950991. The next prime is 28951001. The reversal of 28950994 is 49905982.

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., 28761769 + 189225 = 5363^2 + 435^2 .

It is not an unprimeable number, because it can be changed into a prime (28950991) 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, 7237747 + ... + 7237750.

Almost surely, 2^28950994 is an apocalyptic number.

28950994 is a deficient number, since it is larger than the sum of its proper divisors (14475500).

28950994 is a wasteful number, since it uses less digits than its factorization.

28950994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475499.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 28950994 is about 5380.6127903799. The cubic root of 28950994 is about 307.0585252724.

The spelling of 28950994 in words is "twenty-eight million, nine hundred fifty thousand, nine hundred ninety-four".