497843287 has 4 divisors (see below), whose sum is σ = 502496136. Its totient is φ = 493190440.

The previous prime is 497843243. The next prime is 497843369. The reversal of 497843287 is 782348794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497843287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497843237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2326264 + ... + 2326477.

It is an arithmetic number, because the mean of its divisors is an integer number (125624034).

Almost surely, 2^497843287 is an apocalyptic number.

497843287 is a deficient number, since it is larger than the sum of its proper divisors (4652849).

497843287 is a wasteful number, since it uses less digits than its factorization.

497843287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652848.

The product of its digits is 2709504, while the sum is 52.

The square root of 497843287 is about 22312.4020894210. The cubic root of 497843287 is about 792.5576917337.

Subtracting from 497843287 its sum of digits (52), we obtain a triangular number (497843235 = T₃₁₅₅₄).

The spelling of 497843287 in words is "four hundred ninety-seven million, eight hundred forty-three thousand, two hundred eighty-seven".