677043720 has 288 divisors, whose sum is σ = 2416564800. Its totient is φ = 163918080.

The previous prime is 677043707. The next prime is 677043721. The reversal of 677043720 is 27340776.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (677043721) 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 71 ways as a sum of consecutive naturals, for example, 6573189 + ... + 6573291.

It is an arithmetic number, because the mean of its divisors is an integer number (8390850).

Almost surely, 2^677043720 is an apocalyptic number.

677043720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677043720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1208282400).

677043720 is an abundant number, since it is smaller than the sum of its proper divisors (1739521080).

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

677043720 is a wasteful number, since it uses less digits than its factorization.

677043720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 677043720 is about 26020.0637970010. The cubic root of 677043720 is about 878.0897440622.

The spelling of 677043720 in words is "six hundred seventy-seven million, forty-three thousand, seven hundred twenty".