647672053 has 12 divisors (see below), whose sum is σ = 753904800. Its totient is φ = 554786232.

The previous prime is 647672041. The next prime is 647672059. The reversal of 647672053 is 350276746.

It is not a de Polignac number, because 647672053 - 2²¹ = 645574901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 647671997 and 647672015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647672059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94848 + ... + 101446.

It is an arithmetic number, because the mean of its divisors is an integer number (62825400).

Almost surely, 2^647672053 is an apocalyptic number.

It is an amenable number.

647672053 is a deficient number, since it is larger than the sum of its proper divisors (106232747).

647672053 is a wasteful number, since it uses less digits than its factorization.

647672053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616 (or 8609 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 647672053 is about 25449.4018200821. The cubic root of 647672053 is about 865.2037356311.

The spelling of 647672053 in words is "six hundred forty-seven million, six hundred seventy-two thousand, fifty-three".