676245864 has 144 divisors (see below), whose sum is σ = 2019906720. Its totient is φ = 188112960.

The previous prime is 676245863. The next prime is 676245877. The reversal of 676245864 is 468542676.

Its product of digits (1935360) is a multiple of the sum of its prime factors (420).

It is not an unprimeable number, because it can be changed into a prime (676245863) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 2174269 + ... + 2174579.

It is an arithmetic number, because the mean of its divisors is an integer number (14027130).

Almost surely, 2^676245864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676245864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009953360).

676245864 is an abundant number, since it is smaller than the sum of its proper divisors (1343660856).

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

676245864 is a wasteful number, since it uses less digits than its factorization.

676245864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 366 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 676245864 is about 26004.7277240120. The cubic root of 676245864 is about 877.7446828639.

The spelling of 676245864 in words is "six hundred seventy-six million, two hundred forty-five thousand, eight hundred sixty-four".