499961769 has 32 divisors (see below), whose sum is σ = 716221440. Its totient is φ = 309523200.

The previous prime is 499961767. The next prime is 499961779. The reversal of 499961769 is 967169994.

It is not a de Polignac number, because 499961769 - 2¹ = 499961767 is a prime.

It is a super-2 number, since 2×499961769² = 499923540923218722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (499961767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 530839 + ... + 531779.

It is an arithmetic number, because the mean of its divisors is an integer number (22381920).

Almost surely, 2^499961769 is an apocalyptic number.

It is an amenable number.

499961769 is a deficient number, since it is larger than the sum of its proper divisors (216259671).

499961769 is a wasteful number, since it uses less digits than its factorization.

499961769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its digits is 6613488, while the sum is 60.

The square root of 499961769 is about 22359.8248875075. The cubic root of 499961769 is about 793.6802961586.

Subtracting 499961769 from its reverse (967169994), we obtain a square (467208225 = 21615²).

The spelling of 499961769 in words is "four hundred ninety-nine million, nine hundred sixty-one thousand, seven hundred sixty-nine".