648877001 has 8 divisors (see below), whose sum is σ = 674735880. Its totient is φ = 623250432.

The previous prime is 648876979. The next prime is 648877091. The reversal of 648877001 is 100778846.

648877001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1123600 + 647753401 = 1060^2 + 25451^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 648877001 - 2⁶ = 648876937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 648877001.

It is not an unprimeable number, because it can be changed into a prime (648877091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52370 + ... + 63563.

It is an arithmetic number, because the mean of its divisors is an integer number (84341985).

Almost surely, 2^648877001 is an apocalyptic number.

It is an amenable number.

648877001 is a deficient number, since it is larger than the sum of its proper divisors (25858879).

648877001 is a wasteful number, since it uses less digits than its factorization.

648877001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116155.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 648877001 is about 25473.0642247846. The cubic root of 648877001 is about 865.7399533349.

The spelling of 648877001 in words is "six hundred forty-eight million, eight hundred seventy-seven thousand, one".