497955187 has 2 divisors, whose sum is σ = 497955188. Its totient is φ = 497955186.

The previous prime is 497955181. The next prime is 497955191. The reversal of 497955187 is 781559794.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 497955187 - 2¹⁵ = 497922419 is a prime.

It is not a weakly prime, because it can be changed into another prime (497955181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248977593 + 248977594.

It is an arithmetic number, because the mean of its divisors is an integer number (248977594).

Almost surely, 2^497955187 is an apocalyptic number.

497955187 is a deficient number, since it is larger than the sum of its proper divisors (1).

497955187 is an equidigital number, since it uses as much as digits as its factorization.

497955187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 55.

The square root of 497955187 is about 22314.9095225591. The cubic root of 497955187 is about 792.6170682243.

The spelling of 497955187 in words is "four hundred ninety-seven million, nine hundred fifty-five thousand, one hundred eighty-seven".