499961765 has 16 divisors (see below), whose sum is σ = 614718720. Its totient is φ = 390243840.

The previous prime is 499961747. The next prime is 499961767. The reversal of 499961765 is 567169994.

It is not a de Polignac number, because 499961765 - 2¹² = 499957669 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499961765.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27176 + ... + 41694.

It is an arithmetic number, because the mean of its divisors is an integer number (38419920).

Almost surely, 2^499961765 is an apocalyptic number.

It is an amenable number.

499961765 is a deficient number, since it is larger than the sum of its proper divisors (114756955).

499961765 is a wasteful number, since it uses less digits than its factorization.

499961765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692.

The product of its digits is 3674160, while the sum is 56.

The square root of 499961765 is about 22359.8247980614. The cubic root of 499961765 is about 793.6802940420.

The spelling of 499961765 in words is "four hundred ninety-nine million, nine hundred sixty-one thousand, seven hundred sixty-five".