485918765 has 4 divisors (see below), whose sum is σ = 583102524. Its totient is φ = 388735008.

The previous prime is 485918761. The next prime is 485918789. The reversal of 485918765 is 567819584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 326199721 + 159719044 = 18061^2 + 12638^2 .

It is a cyclic number.

It is not a de Polignac number, because 485918765 - 2² = 485918761 is a prime.

It is a super-2 number, since 2×485918765² = 472234092358250450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485918761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48591872 + ... + 48591881.

It is an arithmetic number, because the mean of its divisors is an integer number (145775631).

Almost surely, 2^485918765 is an apocalyptic number.

It is an amenable number.

485918765 is a deficient number, since it is larger than the sum of its proper divisors (97183759).

485918765 is an equidigital number, since it uses as much as digits as its factorization.

485918765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97183758.

The product of its digits is 2419200, while the sum is 53.

The square root of 485918765 is about 22043.5651608355. The cubic root of 485918765 is about 786.1786100754.

The spelling of 485918765 in words is "four hundred eighty-five million, nine hundred eighteen thousand, seven hundred sixty-five".