677800247 has 4 divisors (see below), whose sum is σ = 678932400. Its totient is φ = 676668096.

The previous prime is 677800241. The next prime is 677800261. The reversal of 677800247 is 742008776.

677800247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677800247 - 2⁴ = 677800231 is a prime.

It is a super-2 number, since 2×677800247² = 918826349666522018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677800241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565178 + ... + 566375.

It is an arithmetic number, because the mean of its divisors is an integer number (169733100).

Almost surely, 2^677800247 is an apocalyptic number.

677800247 is a deficient number, since it is larger than the sum of its proper divisors (1132153).

677800247 is a wasteful number, since it uses less digits than its factorization.

677800247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132152.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 677800247 is about 26034.5971161453. The cubic root of 677800247 is about 878.4166807652.

The spelling of 677800247 in words is "six hundred seventy-seven million, eight hundred thousand, two hundred forty-seven".