677014997 has 2 divisors, whose sum is σ = 677014998. Its totient is φ = 677014996.

The previous prime is 677014991. The next prime is 677014999. The reversal of 677014997 is 799410776.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390694756 + 286320241 = 19766^2 + 16921^2 .

It is a cyclic number.

It is not a de Polignac number, because 677014997 - 2²² = 672820693 is a prime.

Together with 677014999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677014991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338507498 + 338507499.

It is an arithmetic number, because the mean of its divisors is an integer number (338507499).

Almost surely, 2^677014997 is an apocalyptic number.

It is an amenable number.

677014997 is a deficient number, since it is larger than the sum of its proper divisors (1).

677014997 is an equidigital number, since it uses as much as digits as its factorization.

677014997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 677014997 is about 26019.5118516855. The cubic root of 677014997 is about 878.0773264848.

The spelling of 677014997 in words is "six hundred seventy-seven million, fourteen thousand, nine hundred ninety-seven".