489999794 has 4 divisors (see below), whose sum is σ = 734999694. Its totient is φ = 244999896.

The previous prime is 489999793. The next prime is 489999803. The reversal of 489999794 is 497999984.

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., 341769169 + 148230625 = 18487^2 + 12175^2 .

It is not an unprimeable number, because it can be changed into a prime (489999793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122499947 + ... + 122499950.

Almost surely, 2^489999794 is an apocalyptic number.

489999794 is a deficient number, since it is larger than the sum of its proper divisors (244999900).

489999794 is a wasteful number, since it uses less digits than its factorization.

489999794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244999899.

The product of its digits is 52907904, while the sum is 68.

The square root of 489999794 is about 22135.9389681125. The cubic root of 489999794 is about 788.3734058310.

The spelling of 489999794 in words is "four hundred eighty-nine million, nine hundred ninety-nine thousand, seven hundred ninety-four".