648796061 has 8 divisors (see below), whose sum is σ = 663127200. Its totient is φ = 634584240.

The previous prime is 648796051. The next prime is 648796069. The reversal of 648796061 is 160697846.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-648796061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 648795997 and 648796015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648796069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18791 + ... + 40628.

It is an arithmetic number, because the mean of its divisors is an integer number (82890900).

Almost surely, 2^648796061 is an apocalyptic number.

648796061 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

648796061 is a deficient number, since it is larger than the sum of its proper divisors (14331139).

648796061 is a wasteful number, since it uses less digits than its factorization.

648796061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59659.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 648796061 is about 25471.4754382230. The cubic root of 648796061 is about 865.7039547787.

The spelling of 648796061 in words is "six hundred forty-eight million, seven hundred ninety-six thousand, sixty-one".