481947761 has 2 divisors, whose sum is σ = 481947762. Its totient is φ = 481947760.

The previous prime is 481947737. The next prime is 481947797. The reversal of 481947761 is 167749184.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366492736 + 115455025 = 19144^2 + 10745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481947761 is a prime.

It is not a weakly prime, because it can be changed into another prime (481947061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240973880 + 240973881.

It is an arithmetic number, because the mean of its divisors is an integer number (240973881).

Almost surely, 2^481947761 is an apocalyptic number.

It is an amenable number.

481947761 is a deficient number, since it is larger than the sum of its proper divisors (1).

481947761 is an equidigital number, since it uses as much as digits as its factorization.

481947761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 481947761 is about 21953.3086572389. The cubic root of 481947761 is about 784.0311581961.

It can be divided in two parts, 48194 and 7761, that added together give a palindrome (55955).

The spelling of 481947761 in words is "four hundred eighty-one million, nine hundred forty-seven thousand, seven hundred sixty-one".