677859893 has 4 divisors (see below), whose sum is σ = 683034528. Its totient is φ = 672685260.

The previous prime is 677859881. The next prime is 677859907. The reversal of 677859893 is 398958776.

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 a cyclic number.

It is not a de Polignac number, because 677859893 - 2¹² = 677855797 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 (677859863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2587121 + ... + 2587382.

It is an arithmetic number, because the mean of its divisors is an integer number (170758632).

Almost surely, 2^677859893 is an apocalyptic number.

It is an amenable number.

677859893 is a deficient number, since it is larger than the sum of its proper divisors (5174635).

677859893 is a wasteful number, since it uses less digits than its factorization.

677859893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174634.

The product of its digits is 22861440, while the sum is 62.

The square root of 677859893 is about 26035.7426051188. The cubic root of 677859893 is about 878.4424467166.

The spelling of 677859893 in words is "six hundred seventy-seven million, eight hundred fifty-nine thousand, eight hundred ninety-three".