677005843 has 2 divisors, whose sum is σ = 677005844. Its totient is φ = 677005842.

The previous prime is 677005829. The next prime is 677005961. The reversal of 677005843 is 348500776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677005843 is a prime.

It is a super-2 number, since 2×677005843² = 916673822912281298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 677005796 and 677005805.

It is not a weakly prime, because it can be changed into another prime (677005543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338502921 + 338502922.

It is an arithmetic number, because the mean of its divisors is an integer number (338502922).

Almost surely, 2^677005843 is an apocalyptic number.

677005843 is a deficient number, since it is larger than the sum of its proper divisors (1).

677005843 is an equidigital number, since it uses as much as digits as its factorization.

677005843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 677005843 is about 26019.3359446393. The cubic root of 677005843 is about 878.0733689378.

The spelling of 677005843 in words is "six hundred seventy-seven million, five thousand, eight hundred forty-three".