649075854 has 48 divisors (see below), whose sum is σ = 1562187600. Its totient is φ = 179053056.

The previous prime is 649075831. The next prime is 649075877. The reversal of 649075854 is 458570946.

It is an interprime number because it is at equal distance from previous prime (649075831) and next prime (649075877).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29539 + ... + 46590.

It is an arithmetic number, because the mean of its divisors is an integer number (32545575).

Almost surely, 2^649075854 is an apocalyptic number.

649075854 is an abundant number, since it is smaller than the sum of its proper divisors (913111746).

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

649075854 is a wasteful number, since it uses less digits than its factorization.

649075854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76177 (or 76170 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 649075854 is about 25476.9671271916. The cubic root of 649075854 is about 865.8283817035.

The spelling of 649075854 in words is "six hundred forty-nine million, seventy-five thousand, eight hundred fifty-four".