647070265 has 8 divisors (see below), whose sum is σ = 776873088. Its totient is φ = 517397040.

The previous prime is 647070253. The next prime is 647070353. The reversal of 647070265 is 562070746.

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

It is not a de Polignac number, because 647070265 - 2⁵ = 647070233 is a prime.

It is a Duffinian 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, 21051 + ... + 41680.

It is an arithmetic number, because the mean of its divisors is an integer number (97109136).

Almost surely, 2^647070265 is an apocalyptic number.

It is an amenable number.

647070265 is a deficient number, since it is larger than the sum of its proper divisors (129802823).

647070265 is a wasteful number, since it uses less digits than its factorization.

647070265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64799.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 647070265 is about 25437.5758475528. The cubic root of 647070265 is about 864.9356830123.

The spelling of 647070265 in words is "six hundred forty-seven million, seventy thousand, two hundred sixty-five".