497172971 has 2 divisors, whose sum is σ = 497172972. Its totient is φ = 497172970.

The previous prime is 497172961. The next prime is 497173021. The reversal of 497172971 is 179271794.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497172971 - 2¹⁰ = 497171947 is a prime.

It is a super-3 number, since 3×497172971³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (497172931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248586485 + 248586486.

It is an arithmetic number, because the mean of its divisors is an integer number (248586486).

Almost surely, 2^497172971 is an apocalyptic number.

497172971 is a deficient number, since it is larger than the sum of its proper divisors (1).

497172971 is an equidigital number, since it uses as much as digits as its factorization.

497172971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 47.

The square root of 497172971 is about 22297.3758769950. The cubic root of 497172971 is about 792.2018215683.

The spelling of 497172971 in words is "four hundred ninety-seven million, one hundred seventy-two thousand, nine hundred seventy-one".