486777749 has 2 divisors, whose sum is σ = 486777750. Its totient is φ = 486777748.

The previous prime is 486777721. The next prime is 486777751. The reversal of 486777749 is 947777684.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485320900 + 1456849 = 22030^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 486777749 - 2¹² = 486773653 is a prime.

Together with 486777751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486777799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243388874 + 243388875.

It is an arithmetic number, because the mean of its divisors is an integer number (243388875).

Almost surely, 2^486777749 is an apocalyptic number.

It is an amenable number.

486777749 is a deficient number, since it is larger than the sum of its proper divisors (1).

486777749 is an equidigital number, since it uses as much as digits as its factorization.

486777749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16595712, while the sum is 59.

The square root of 486777749 is about 22063.0403389923. The cubic root of 486777749 is about 786.6415937100.

The spelling of 486777749 in words is "four hundred eighty-six million, seven hundred seventy-seven thousand, seven hundred forty-nine".