497230857 has 6 divisors (see below), whose sum is σ = 718222362. Its totient is φ = 331487232.

The previous prime is 497230837. The next prime is 497230871. The reversal of 497230857 is 758032794.

It can be written as a sum of positive squares in only one way, i.e., 386476281 + 110754576 = 19659^2 + 10524^2 .

It is not a de Polignac number, because 497230857 - 2²⁴ = 480453641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497230837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27623928 + ... + 27623945.

It is an arithmetic number, because the mean of its divisors is an integer number (119703727).

Almost surely, 2^497230857 is an apocalyptic number.

It is an amenable number.

497230857 is a deficient number, since it is larger than the sum of its proper divisors (220991505).

497230857 is a wasteful number, since it uses less digits than its factorization.

497230857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55247879 (or 55247876 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 497230857 is about 22298.6738843367. The cubic root of 497230857 is about 792.2325658080.

The spelling of 497230857 in words is "four hundred ninety-seven million, two hundred thirty thousand, eight hundred fifty-seven".