495307681 has 8 divisors (see below), whose sum is σ = 541340928. Its totient is φ = 449442000.

The previous prime is 495307679. The next prime is 495307711. The reversal of 495307681 is 186703594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 495307681 - 2¹ = 495307679 is a prime.

It is a super-2 number, since 2×495307681² = 490659397715195522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495307651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35665 + ... + 47566.

It is an arithmetic number, because the mean of its divisors is an integer number (67667616).

Almost surely, 2^495307681 is an apocalyptic number.

It is an amenable number.

495307681 is a deficient number, since it is larger than the sum of its proper divisors (46033247).

495307681 is a wasteful number, since it uses less digits than its factorization.

495307681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83783.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 495307681 is about 22255.5090033906. The cubic root of 495307681 is about 791.2098542690.

The spelling of 495307681 in words is "four hundred ninety-five million, three hundred seven thousand, six hundred eighty-one".