499629779 has 16 divisors (see below), whose sum is σ = 579363840. Its totient is φ = 425823360.

The previous prime is 499629773. The next prime is 499629791. The reversal of 499629779 is 977926994.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 499629779 - 2¹² = 499625683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499629773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44102 + ... + 54260.

It is an arithmetic number, because the mean of its divisors is an integer number (36210240).

Almost surely, 2^499629779 is an apocalyptic number.

499629779 is a deficient number, since it is larger than the sum of its proper divisors (79734061).

499629779 is a wasteful number, since it uses less digits than its factorization.

499629779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10450.

The product of its digits is 15431472, while the sum is 62.

The square root of 499629779 is about 22352.3998487858. The cubic root of 499629779 is about 793.5045812126.

The spelling of 499629779 in words is "four hundred ninety-nine million, six hundred twenty-nine thousand, seven hundred seventy-nine".