677769143 has 8 divisors (see below), whose sum is σ = 683398800. Its totient is φ = 672150528.

The previous prime is 677769133. The next prime is 677769173. The reversal of 677769143 is 341967776.

It is a happy number.

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 677769143 - 2¹² = 677765047 is a prime.

It is a super-2 number, since 2×677769143² = 918742022405908898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677769091 and 677769100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677769133) 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, 158153 + ... + 162381.

It is an arithmetic number, because the mean of its divisors is an integer number (85424850).

Almost surely, 2^677769143 is an apocalyptic number.

677769143 is a deficient number, since it is larger than the sum of its proper divisors (5629657).

677769143 is a wasteful number, since it uses less digits than its factorization.

677769143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521.

The product of its digits is 1333584, while the sum is 50.

The square root of 677769143 is about 26033.9997503265. Note that the first 3 decimals coincide. The cubic root of 677769143 is about 878.4032438220.

The spelling of 677769143 in words is "six hundred seventy-seven million, seven hundred sixty-nine thousand, one hundred forty-three".