677357561 has 8 divisors (see below), whose sum is σ = 698490624. Its totient is φ = 656504640.

The previous prime is 677357539. The next prime is 677357573. The reversal of 677357561 is 165753776.

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 677357561 - 2¹⁴ = 677341177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677350561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65120 + ... + 74801.

It is an arithmetic number, because the mean of its divisors is an integer number (87311328).

Almost surely, 2^677357561 is an apocalyptic number.

It is an amenable number.

677357561 is a deficient number, since it is larger than the sum of its proper divisors (21133063).

677357561 is a wasteful number, since it uses less digits than its factorization.

677357561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140071.

The product of its digits is 926100, while the sum is 47.

The square root of 677357561 is about 26026.0938482900. The cubic root of 677357561 is about 878.2254014724.

The spelling of 677357561 in words is "six hundred seventy-seven million, three hundred fifty-seven thousand, five hundred sixty-one".