677667371 has 2 divisors, whose sum is σ = 677667372. Its totient is φ = 677667370.

The previous prime is 677667359. The next prime is 677667373. The reversal of 677667371 is 173766776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677667371 - 2¹⁸ = 677405227 is a prime.

Together with 677667373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677667373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338833685 + 338833686.

It is an arithmetic number, because the mean of its divisors is an integer number (338833686).

Almost surely, 2^677667371 is an apocalyptic number.

677667371 is a deficient number, since it is larger than the sum of its proper divisors (1).

677667371 is an equidigital number, since it uses as much as digits as its factorization.

677667371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555848, while the sum is 50.

The square root of 677667371 is about 26032.0450790943. The cubic root of 677667371 is about 878.3592753947.

It can be divided in two parts, 6776 and 67371, that added together give a palindrome (74147).

The spelling of 677667371 in words is "six hundred seventy-seven million, six hundred sixty-seven thousand, three hundred seventy-one".