497148689 has 2 divisors, whose sum is σ = 497148690. Its totient is φ = 497148688.

The previous prime is 497148667. The next prime is 497148709. The reversal of 497148689 is 986841794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317374225 + 179774464 = 17815^2 + 13408^2 .

It is a cyclic number.

It is not a de Polignac number, because 497148689 - 2²⁰ = 496100113 is a prime.

It is not a weakly prime, because it can be changed into another prime (497148389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248574344 + 248574345.

It is an arithmetic number, because the mean of its divisors is an integer number (248574345).

Almost surely, 2^497148689 is an apocalyptic number.

It is an amenable number.

497148689 is a deficient number, since it is larger than the sum of its proper divisors (1).

497148689 is an equidigital number, since it uses as much as digits as its factorization.

497148689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The square root of 497148689 is about 22296.8313668108. The cubic root of 497148689 is about 792.1889242744.

The spelling of 497148689 in words is "four hundred ninety-seven million, one hundred forty-eight thousand, six hundred eighty-nine".