495776987 has 4 divisors (see below), whose sum is σ = 496257960. Its totient is φ = 495296016.

The previous prime is 495776977. The next prime is 495776989. The reversal of 495776987 is 789677594.

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

It is a cyclic number.

It is not a de Polignac number, because 495776987 - 2⁸ = 495776731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495776989) 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, 238937 + ... + 241002.

It is an arithmetic number, because the mean of its divisors is an integer number (124064490).

Almost surely, 2^495776987 is an apocalyptic number.

495776987 is a deficient number, since it is larger than the sum of its proper divisors (480973).

495776987 is a wasteful number, since it uses less digits than its factorization.

495776987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480972.

The product of its digits is 26671680, while the sum is 62.

The square root of 495776987 is about 22266.0500987490. The cubic root of 495776987 is about 791.4596668819.

The spelling of 495776987 in words is "four hundred ninety-five million, seven hundred seventy-six thousand, nine hundred eighty-seven".