495172986 has 32 divisors (see below), whose sum is σ = 1234718208. Its totient is φ = 128616240.

The previous prime is 495172967. The next prime is 495172987. The reversal of 495172986 is 689271594.

It is not an unprimeable number, because it can be changed into a prime (495172987) 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, 535440 + ... + 536363.

It is an arithmetic number, because the mean of its divisors is an integer number (38584944).

Almost surely, 2^495172986 is an apocalyptic number.

495172986 is an abundant number, since it is smaller than the sum of its proper divisors (739545222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495172986 is a wasteful number, since it uses less digits than its factorization.

495172986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071826.

The product of its digits is 1088640, while the sum is 51.

The square root of 495172986 is about 22252.4826929491. The cubic root of 495172986 is about 791.1381266827.

The spelling of 495172986 in words is "four hundred ninety-five million, one hundred seventy-two thousand, nine hundred eighty-six".