497213279 has 2 divisors, whose sum is σ = 497213280. Its totient is φ = 497213278.

The previous prime is 497213267. The next prime is 497213341. The reversal of 497213279 is 972312794.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497213279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497213579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248606639 + 248606640.

It is an arithmetic number, because the mean of its divisors is an integer number (248606640).

Almost surely, 2^497213279 is an apocalyptic number.

497213279 is a deficient number, since it is larger than the sum of its proper divisors (1).

497213279 is an equidigital number, since it uses as much as digits as its factorization.

497213279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 497213279 is about 22298.2797318538. The cubic root of 497213279 is about 792.2232300854.

The spelling of 497213279 in words is "four hundred ninety-seven million, two hundred thirteen thousand, two hundred seventy-nine".