677051693 has 4 divisors (see below), whose sum is σ = 677476188. Its totient is φ = 676627200.

The previous prime is 677051659. The next prime is 677051699. The reversal of 677051693 is 396150776.

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

It can be written as a sum of positive squares in 2 ways, for example, as 347375044 + 329676649 = 18638^2 + 18157^2 .

It is a cyclic number.

It is not a de Polignac number, because 677051693 - 2¹⁴ = 677035309 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 (677051699) 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 3 ways as a sum of consecutive naturals, for example, 209846 + ... + 213047.

It is an arithmetic number, because the mean of its divisors is an integer number (169369047).

Almost surely, 2^677051693 is an apocalyptic number.

It is an amenable number.

677051693 is a deficient number, since it is larger than the sum of its proper divisors (424495).

677051693 is a wasteful number, since it uses less digits than its factorization.

677051693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424494.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 677051693 is about 26020.2170052442. The cubic root of 677051693 is about 878.0931909012.

The spelling of 677051693 in words is "six hundred seventy-seven million, fifty-one thousand, six hundred ninety-three".