499807749 has 24 divisors (see below), whose sum is σ = 803818560. Its totient is φ = 270568512.

The previous prime is 499807741. The next prime is 499807751. The reversal of 499807749 is 947708994.

It is not a de Polignac number, because 499807749 - 2³ = 499807741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

499807749 is a modest number, since divided by 7749 gives 4998 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499807741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25384 + ... + 40545.

It is an arithmetic number, because the mean of its divisors is an integer number (33492440).

Almost surely, 2^499807749 is an apocalyptic number.

It is an amenable number.

499807749 is a deficient number, since it is larger than the sum of its proper divisors (304010811).

499807749 is a wasteful number, since it uses less digits than its factorization.

499807749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65977 (or 65958 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 499807749 is about 22356.3804986407. The cubic root of 499807749 is about 793.5987864634.

The spelling of 499807749 in words is "four hundred ninety-nine million, eight hundred seven thousand, seven hundred forty-nine".