499999764 has 24 divisors (see below), whose sum is σ = 1272727008. Its totient is φ = 151515040.

The previous prime is 499999751. The next prime is 499999831. The reversal of 499999764 is 467999994.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 499999695 and 499999704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893807 + ... + 1894070.

It is an arithmetic number, because the mean of its divisors is an integer number (53030292).

Almost surely, 2^499999764 is an apocalyptic number.

499999764 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

499999764 is an abundant number, since it is smaller than the sum of its proper divisors (772727244).

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

499999764 is a wasteful number, since it uses less digits than its factorization.

499999764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787895 (or 3787893 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 66.

The square root of 499999764 is about 22360.6744978768. The cubic root of 499999764 is about 793.7004011085.

The spelling of 499999764 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred sixty-four".