647340495 has 8 divisors (see below), whose sum is σ = 1035744816. Its totient is φ = 345248256.

The previous prime is 647340439. The next prime is 647340517. The reversal of 647340495 is 594043746.

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

It is not a de Polignac number, because 647340495 - 2¹⁰ = 647339471 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21578002 + ... + 21578031.

It is an arithmetic number, because the mean of its divisors is an integer number (129468102).

Almost surely, 2^647340495 is an apocalyptic number.

647340495 is a deficient number, since it is larger than the sum of its proper divisors (388404321).

647340495 is a wasteful number, since it uses less digits than its factorization.

647340495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43156041.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 647340495 is about 25442.8869234606. The cubic root of 647340495 is about 865.0560712981.

The spelling of 647340495 in words is "six hundred forty-seven million, three hundred forty thousand, four hundred ninety-five".