677217007 has 2 divisors, whose sum is σ = 677217008. Its totient is φ = 677217006.

The previous prime is 677217001. The next prime is 677217011. The reversal of 677217007 is 700712776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677217007 - 2³ = 677216999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677217001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338608503 + 338608504.

It is an arithmetic number, because the mean of its divisors is an integer number (338608504).

Almost surely, 2^677217007 is an apocalyptic number.

677217007 is a deficient number, since it is larger than the sum of its proper divisors (1).

677217007 is an equidigital number, since it uses as much as digits as its factorization.

677217007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28812, while the sum is 37.

The square root of 677217007 is about 26023.3934566574. The cubic root of 677217007 is about 878.1646523501.

The spelling of 677217007 in words is "six hundred seventy-seven million, two hundred seventeen thousand, seven".