497816677 has 2 divisors, whose sum is σ = 497816678. Its totient is φ = 497816676.

The previous prime is 497816659. The next prime is 497816747. The reversal of 497816677 is 776618794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328660641 + 169156036 = 18129^2 + 13006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497816677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497816177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248908338 + 248908339.

It is an arithmetic number, because the mean of its divisors is an integer number (248908339).

Almost surely, 2^497816677 is an apocalyptic number.

It is an amenable number.

497816677 is a deficient number, since it is larger than the sum of its proper divisors (1).

497816677 is an equidigital number, since it uses as much as digits as its factorization.

497816677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The square root of 497816677 is about 22311.8057763149. The cubic root of 497816677 is about 792.5435705992.

The spelling of 497816677 in words is "four hundred ninety-seven million, eight hundred sixteen thousand, six hundred seventy-seven".