677346407 has 2 divisors, whose sum is σ = 677346408. Its totient is φ = 677346406.

The previous prime is 677346403. The next prime is 677346421. The reversal of 677346407 is 704643776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677346407 - 2² = 677346403 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677346403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338673203 + 338673204.

It is an arithmetic number, because the mean of its divisors is an integer number (338673204).

Almost surely, 2^677346407 is an apocalyptic number.

677346407 is a deficient number, since it is larger than the sum of its proper divisors (1).

677346407 is an equidigital number, since it uses as much as digits as its factorization.

677346407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 44.

The square root of 677346407 is about 26025.8795624663. The cubic root of 677346407 is about 878.2205808870.

The spelling of 677346407 in words is "six hundred seventy-seven million, three hundred forty-six thousand, four hundred seven".