801668677 has 16 divisors (see below), whose sum is σ = 875169792. Its totient is φ = 731255040.

The previous prime is 801668641. The next prime is 801668683. The reversal of 801668677 is 776866108.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-801668677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 801668677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801668617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168108 + ... + 172810.

It is an arithmetic number, because the mean of its divisors is an integer number (54698112).

Almost surely, 2^801668677 is an apocalyptic number.

It is an amenable number.

801668677 is a deficient number, since it is larger than the sum of its proper divisors (73501115).

801668677 is a wasteful number, since it uses less digits than its factorization.

801668677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 801668677 is about 28313.7542018009. The cubic root of 801668677 is about 928.9627611880.

The spelling of 801668677 in words is "eight hundred one million, six hundred sixty-eight thousand, six hundred seventy-seven".