499896864 has 36 divisors (see below), whose sum is σ = 1421582526. Its totient is φ = 166632192.

The previous prime is 499896853. The next prime is 499896869. The reversal of 499896864 is 468698994.

499896864 is a `hidden beast` number, since 499 + 89 + 6 + 8 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 497646864 + 2250000 = 22308^2 + 1500^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (499896869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867589 + ... + 868164.

Almost surely, 2^499896864 is an apocalyptic number.

It is an amenable number.

499896864 is an abundant number, since it is smaller than the sum of its proper divisors (921685662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499896864 is a wasteful number, since it uses less digits than its factorization.

499896864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735769 (or 1735758 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The square root of 499896864 is about 22358.3734649907. The cubic root of 499896864 is about 793.6459494998.

The spelling of 499896864 in words is "four hundred ninety-nine million, eight hundred ninety-six thousand, eight hundred sixty-four".