648371801 has 8 divisors (see below), whose sum is σ = 808359744. Its totient is φ = 505224720.

The previous prime is 648371777. The next prime is 648371809. The reversal of 648371801 is 108173846.

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

It is not a de Polignac number, because 648371801 - 2²⁶ = 581262937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648371809) 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, 4210130 + ... + 4210283.

It is an arithmetic number, because the mean of its divisors is an integer number (101044968).

Almost surely, 2^648371801 is an apocalyptic number.

It is an amenable number.

648371801 is a deficient number, since it is larger than the sum of its proper divisors (159987943).

648371801 is a wasteful number, since it uses less digits than its factorization.

648371801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420431.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 648371801 is about 25463.1459368241. The cubic root of 648371801 is about 865.5152135759.

The spelling of 648371801 in words is "six hundred forty-eight million, three hundred seventy-one thousand, eight hundred one".