486713781 has 12 divisors (see below), whose sum is σ = 703283308. Its totient is φ = 324359424.

The previous prime is 486713771. The next prime is 486713783. The reversal of 486713781 is 187317684.

It can be written as a sum of positive squares in 2 ways, for example, as 231800625 + 254913156 = 15225^2 + 15966^2 .

It is not a de Polignac number, because 486713781 - 2¹⁴ = 486697397 is a prime.

It is a super-2 number, since 2×486713781² = 473780609230631922, 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 (486713783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22341 + ... + 38373.

Almost surely, 2^486713781 is an apocalyptic number.

It is an amenable number.

486713781 is a deficient number, since it is larger than the sum of its proper divisors (216569527).

486713781 is a wasteful number, since it uses less digits than its factorization.

486713781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19412 (or 19409 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 486713781 is about 22061.5906271511. The cubic root of 486713781 is about 786.6071343878.

The spelling of 486713781 in words is "four hundred eighty-six million, seven hundred thirteen thousand, seven hundred eighty-one".