648862198 has 8 divisors (see below), whose sum is σ = 1024519320. Its totient is φ = 307355760.

The previous prime is 648862189. The next prime is 648862219. The reversal of 648862198 is 891268846.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8537623 + ... + 8537698.

It is an arithmetic number, because the mean of its divisors is an integer number (128064915).

Almost surely, 2^648862198 is an apocalyptic number.

648862198 is a deficient number, since it is larger than the sum of its proper divisors (375657122).

648862198 is a wasteful number, since it uses less digits than its factorization.

648862198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075342.

The product of its digits is 1327104, while the sum is 52.

The square root of 648862198 is about 25472.7736613036. The cubic root of 648862198 is about 865.7333698345.

It can be divided in two parts, 6488 and 62198, that added together give a palindrome (68686).

The spelling of 648862198 in words is "six hundred forty-eight million, eight hundred sixty-two thousand, one hundred ninety-eight".