499999768 has 8 divisors (see below), whose sum is σ = 937499580. Its totient is φ = 249999880.

The previous prime is 499999751. The next prime is 499999831. The reversal of 499999768 is 867999994.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 499999697 and 499999706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31249978 + ... + 31249993.

Almost surely, 2^499999768 is an apocalyptic number.

It is an amenable number.

499999768 is a deficient number, since it is larger than the sum of its proper divisors (437499812).

499999768 is a wasteful number, since it uses less digits than its factorization.

499999768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62499977 (or 62499973 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 70.

The square root of 499999768 is about 22360.6745873196. The cubic root of 499999768 is about 793.7004032251.

The spelling of 499999768 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred sixty-eight".