647058 has 8 divisors (see below), whose sum is σ = 1294128. Its totient is φ = 215684.

The previous prime is 647057. The next prime is 647069. The reversal of 647058 is 850746.

It is a happy number.

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

647058 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (647057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53916 + ... + 53927.

It is an arithmetic number, because the mean of its divisors is an integer number (161766).

2⁶⁴⁷⁰⁵⁸ is an apocalyptic number.

647058 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647058 is a wasteful number, since it uses less digits than its factorization.

647058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107848.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 647058 is about 804.3991546490. The cubic root of 647058 is about 86.4930218122.

The spelling of 647058 in words is "six hundred forty-seven thousand, fifty-eight".