677646210 has 64 divisors (see below), whose sum is σ = 1719400320. Its totient is φ = 170449920.

The previous prime is 677646187. The next prime is 677646247. The reversal of 677646210 is 12646776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134904 + ... + 139836.

It is an arithmetic number, because the mean of its divisors is an integer number (26865630).

Almost surely, 2^677646210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677646210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859700160).

677646210 is an abundant number, since it is smaller than the sum of its proper divisors (1041754110).

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

677646210 is a wasteful number, since it uses less digits than its factorization.

677646210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 677646210 is about 26031.6386345539. The cubic root of 677646210 is about 878.3501326820.

The spelling of 677646210 in words is "six hundred seventy-seven million, six hundred forty-six thousand, two hundred ten".