677217607 has 4 divisors (see below), whose sum is σ = 738782856. Its totient is φ = 615652360.

The previous prime is 677217601. The next prime is 677217613. The reversal of 677217607 is 706712776.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (677217601) and next prime (677217613).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677217607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677217601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30782608 + ... + 30782629.

It is an arithmetic number, because the mean of its divisors is an integer number (184695714).

Almost surely, 2^677217607 is an apocalyptic number.

677217607 is a deficient number, since it is larger than the sum of its proper divisors (61565249).

677217607 is a wasteful number, since it uses less digits than its factorization.

677217607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61565248.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 677217607 is about 26023.4049847440. The cubic root of 677217607 is about 878.1649116951.

The spelling of 677217607 in words is "six hundred seventy-seven million, two hundred seventeen thousand, six hundred seven".