497507993 has 2 divisors, whose sum is σ = 497507994. Its totient is φ = 497507992.

The previous prime is 497507977. The next prime is 497508017. The reversal of 497507993 is 399705794.

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., 427166224 + 70341769 = 20668^2 + 8387^2 .

It is a cyclic number.

It is not a de Polignac number, because 497507993 - 2⁴ = 497507977 is a prime.

It is not a weakly prime, because it can be changed into another prime (497507393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248753996 + 248753997.

It is an arithmetic number, because the mean of its divisors is an integer number (248753997).

Almost surely, 2^497507993 is an apocalyptic number.

It is an amenable number.

497507993 is a deficient number, since it is larger than the sum of its proper divisors (1).

497507993 is an equidigital number, since it uses as much as digits as its factorization.

497507993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2143260, while the sum is 53.

The square root of 497507993 is about 22304.8871998941. The cubic root of 497507993 is about 792.3797244054.

The spelling of 497507993 in words is "four hundred ninety-seven million, five hundred seven thousand, nine hundred ninety-three".