486771261 has 4 divisors (see below), whose sum is σ = 649028352. Its totient is φ = 324514172.

The previous prime is 486771221. The next prime is 486771289. The reversal of 486771261 is 162177684.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-486771261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486771211) 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, 81128541 + ... + 81128546.

It is an arithmetic number, because the mean of its divisors is an integer number (162257088).

Almost surely, 2^486771261 is an apocalyptic number.

It is an amenable number.

486771261 is a deficient number, since it is larger than the sum of its proper divisors (162257091).

486771261 is a wasteful number, since it uses less digits than its factorization.

486771261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162257090.

The product of its digits is 112896, while the sum is 42.

The square root of 486771261 is about 22062.8933052762. The cubic root of 486771261 is about 786.6380987862.

The spelling of 486771261 in words is "four hundred eighty-six million, seven hundred seventy-one thousand, two hundred sixty-one".