647200023 has 8 divisors (see below), whose sum is σ = 864484848. Its totient is φ = 430690944.

The previous prime is 647199991. The next prime is 647200033. The reversal of 647200023 is 320002746.

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

It is not a de Polignac number, because 647200023 - 2⁵ = 647199991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 647199966 and 647200002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647200033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191986 + ... + 195327.

It is an arithmetic number, because the mean of its divisors is an integer number (108060606).

Almost surely, 2^647200023 is an apocalyptic number.

647200023 is a deficient number, since it is larger than the sum of its proper divisors (217284825).

647200023 is a wasteful number, since it uses less digits than its factorization.

647200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387873.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 647200023 is about 25440.1262378943. The cubic root of 647200023 is about 864.9934947777.

Adding to 647200023 its reverse (320002746), we get a palindrome (967202769).

The spelling of 647200023 in words is "six hundred forty-seven million, two hundred thousand, twenty-three".