495369691 has 4 divisors (see below), whose sum is σ = 521441800. Its totient is φ = 469297584.

The previous prime is 495369683. The next prime is 495369703. The reversal of 495369691 is 196963594.

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 495369691 - 2³ = 495369683 is a prime.

It is a super-2 number, since 2×495369691² = 490782261522870962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495369601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13036026 + ... + 13036063.

It is an arithmetic number, because the mean of its divisors is an integer number (130360450).

Almost surely, 2^495369691 is an apocalyptic number.

495369691 is a deficient number, since it is larger than the sum of its proper divisors (26072109).

495369691 is a wasteful number, since it uses less digits than its factorization.

495369691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26072108.

The product of its digits is 1574640, while the sum is 52.

The square root of 495369691 is about 22256.9020980010. The cubic root of 495369691 is about 791.2428713731.

The spelling of 495369691 in words is "four hundred ninety-five million, three hundred sixty-nine thousand, six hundred ninety-one".