677667261 has 8 divisors (see below), whose sum is σ = 903831264. Its totient is φ = 451640720.

The previous prime is 677667241. The next prime is 677667283. The reversal of 677667261 is 162766776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 677667261 - 2¹⁰ = 677666237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677667261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677667241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22251 + ... + 43016.

It is an arithmetic number, because the mean of its divisors is an integer number (112978908).

Almost surely, 2^677667261 is an apocalyptic number.

It is an amenable number.

677667261 is a deficient number, since it is larger than the sum of its proper divisors (226164003).

677667261 is a wasteful number, since it uses less digits than its factorization.

677667261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68731.

The product of its digits is 889056, while the sum is 48.

The square root of 677667261 is about 26032.0429663137. The cubic root of 677667261 is about 878.3592278691.

The spelling of 677667261 in words is "six hundred seventy-seven million, six hundred sixty-seven thousand, two hundred sixty-one".