677650667 has 4 divisors (see below), whose sum is σ = 677841840. Its totient is φ = 677459496.

The previous prime is 677650639. The next prime is 677650681. The reversal of 677650667 is 766056776.

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

It is a cyclic number.

It is not a de Polignac number, because 677650667 - 2⁸ = 677650411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677650867) 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, 90167 + ... + 97392.

It is an arithmetic number, because the mean of its divisors is an integer number (169460460).

Almost surely, 2^677650667 is an apocalyptic number.

677650667 is a deficient number, since it is larger than the sum of its proper divisors (191173).

677650667 is a wasteful number, since it uses less digits than its factorization.

677650667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191172.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The square root of 677650667 is about 26031.7242417785. The cubic root of 677650667 is about 878.3520583663.

The spelling of 677650667 in words is "six hundred seventy-seven million, six hundred fifty thousand, six hundred sixty-seven".