677511431 has 2 divisors, whose sum is σ = 677511432. Its totient is φ = 677511430.

The previous prime is 677511383. The next prime is 677511449. The reversal of 677511431 is 134115776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677511431 is a prime.

It is a super-2 number, since 2×677511431² = 918043478271335522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_35147528 and since 677511431 and 35147528 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 677511391 and 677511400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677511631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338755715 + 338755716.

It is an arithmetic number, because the mean of its divisors is an integer number (338755716).

Almost surely, 2^677511431 is an apocalyptic number.

677511431 is a deficient number, since it is larger than the sum of its proper divisors (1).

677511431 is an equidigital number, since it uses as much as digits as its factorization.

677511431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 35.

The square root of 677511431 is about 26029.0497521519. The cubic root of 677511431 is about 878.2918962945.

The spelling of 677511431 in words is "six hundred seventy-seven million, five hundred eleven thousand, four hundred thirty-one".