648841854 has 8 divisors (see below), whose sum is σ = 1297683720. Its totient is φ = 216280616.

The previous prime is 648841841. The next prime is 648841867. The reversal of 648841854 is 458148846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (648841841) and next prime (648841867).

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

648841854 is an admirable number.

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, 54070149 + ... + 54070160.

It is an arithmetic number, because the mean of its divisors is an integer number (162210465).

Almost surely, 2^648841854 is an apocalyptic number.

648841854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648841854 is a wasteful number, since it uses less digits than its factorization.

648841854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108140314.

The product of its digits is 983040, while the sum is 48.

The square root of 648841854 is about 25472.3743298500. The cubic root of 648841854 is about 865.7243218611.

The spelling of 648841854 in words is "six hundred forty-eight million, eight hundred forty-one thousand, eight hundred fifty-four".