677738757 has 4 divisors (see below), whose sum is σ = 903651680. Its totient is φ = 451825836.

The previous prime is 677738713. The next prime is 677738777. The reversal of 677738757 is 757837776.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 677738757 - 2¹⁶ = 677673221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677738697 and 677738706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677738707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112956457 + ... + 112956462.

It is an arithmetic number, because the mean of its divisors is an integer number (225912920).

Almost surely, 2^677738757 is an apocalyptic number.

It is an amenable number.

677738757 is a deficient number, since it is larger than the sum of its proper divisors (225912923).

677738757 is a wasteful number, since it uses less digits than its factorization.

677738757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225912922.

The product of its digits is 12101040, while the sum is 57.

The square root of 677738757 is about 26033.4161607731. The cubic root of 677738757 is about 878.3901166581.

The spelling of 677738757 in words is "six hundred seventy-seven million, seven hundred thirty-eight thousand, seven hundred fifty-seven".