497211387 has 16 divisors (see below), whose sum is σ = 701030400. Its totient is φ = 312955200.

The previous prime is 497211317. The next prime is 497211419. The reversal of 497211387 is 783112794.

It is not a de Polignac number, because 497211387 - 2¹⁴ = 497195003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497211317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61387 + ... + 69012.

It is an arithmetic number, because the mean of its divisors is an integer number (43814400).

Almost surely, 2^497211387 is an apocalyptic number.

497211387 is a deficient number, since it is larger than the sum of its proper divisors (203819013).

497211387 is a wasteful number, since it uses less digits than its factorization.

497211387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130474.

The product of its digits is 84672, while the sum is 42.

The square root of 497211387 is about 22298.2373070160. The cubic root of 497211387 is about 792.2222252260. Note that the first 5 decimals are identical.

The spelling of 497211387 in words is "four hundred ninety-seven million, two hundred eleven thousand, three hundred eighty-seven".