648998215 has 12 divisors (see below), whose sum is σ = 791797032. Its totient is φ = 510672480.

The previous prime is 648998201. The next prime is 648998243. The reversal of 648998215 is 512899846.

It is not a de Polignac number, because 648998215 - 2⁷ = 648998087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1164 + ... + 36046.

It is an arithmetic number, because the mean of its divisors is an integer number (65983086).

Almost surely, 2^648998215 is an apocalyptic number.

648998215 is a deficient number, since it is larger than the sum of its proper divisors (142798817).

648998215 is an equidigital number, since it uses as much as digits as its factorization.

648998215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010 (or 34949 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 648998215 is about 25475.4433720004. The cubic root of 648998215 is about 865.7938583990.

The spelling of 648998215 in words is "six hundred forty-eight million, nine hundred ninety-eight thousand, two hundred fifteen".