677350447 has 2 divisors, whose sum is σ = 677350448. Its totient is φ = 677350446.

The previous prime is 677350423. The next prime is 677350481. The reversal of 677350447 is 744053776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677350447 is a prime.

It is equal to p_35139697 and since 677350447 and 35139697 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677350747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338675223 + 338675224.

It is an arithmetic number, because the mean of its divisors is an integer number (338675224).

Almost surely, 2^677350447 is an apocalyptic number.

677350447 is a deficient number, since it is larger than the sum of its proper divisors (1).

677350447 is an equidigital number, since it uses as much as digits as its factorization.

677350447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 43.

The square root of 677350447 is about 26025.9571774027. The cubic root of 677350447 is about 878.2223269183. Note that the first 3 decimals are identical.

The spelling of 677350447 in words is "six hundred seventy-seven million, three hundred fifty thousand, four hundred forty-seven".