497744761 has 2 divisors, whose sum is σ = 497744762. Its totient is φ = 497744760.

The previous prime is 497744759. The next prime is 497744791. The reversal of 497744761 is 167447794.

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., 350850361 + 146894400 = 18731^2 + 12120^2 .

It is a cyclic number.

It is not a de Polignac number, because 497744761 - 2¹ = 497744759 is a prime.

Together with 497744759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (497744791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248872380 + 248872381.

It is an arithmetic number, because the mean of its divisors is an integer number (248872381).

Almost surely, 2^497744761 is an apocalyptic number.

It is an amenable number.

497744761 is a deficient number, since it is larger than the sum of its proper divisors (1).

497744761 is an equidigital number, since it uses as much as digits as its factorization.

497744761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 49.

The square root of 497744761 is about 22310.1941049378. The cubic root of 497744761 is about 792.5054044021.

The spelling of 497744761 in words is "four hundred ninety-seven million, seven hundred forty-four thousand, seven hundred sixty-one".