677817612 has 48 divisors (see below), whose sum is σ = 1763865600. Its totient is φ = 225095760.

The previous prime is 677817607. The next prime is 677817619. The reversal of 677817612 is 216718776.

It is not an unprimeable number, because it can be changed into a prime (677817619) 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 15 ways as a sum of consecutive naturals, for example, 17689 + ... + 40847.

It is an arithmetic number, because the mean of its divisors is an integer number (36747200).

Almost surely, 2^677817612 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 677817612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881932800).

677817612 is an abundant number, since it is smaller than the sum of its proper divisors (1086047988).

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

677817612 is a wasteful number, since it uses less digits than its factorization.

677817612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23443 (or 23435 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 677817612 is about 26034.9306125444. The cubic root of 677817612 is about 878.4241822749.

The spelling of 677817612 in words is "six hundred seventy-seven million, eight hundred seventeen thousand, six hundred twelve".