677399291 has 2 divisors, whose sum is σ = 677399292. Its totient is φ = 677399290.

The previous prime is 677399273. The next prime is 677399309. The reversal of 677399291 is 192993776.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (677399273) and next prime (677399309).

It is a cyclic number.

It is not a de Polignac number, because 677399291 - 2⁶ = 677399227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677399231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338699645 + 338699646.

It is an arithmetic number, because the mean of its divisors is an integer number (338699646).

Almost surely, 2^677399291 is an apocalyptic number.

677399291 is a deficient number, since it is larger than the sum of its proper divisors (1).

677399291 is an equidigital number, since it uses as much as digits as its factorization.

677399291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 53.

The square root of 677399291 is about 26026.8955313537. The cubic root of 677399291 is about 878.2434360603.

The spelling of 677399291 in words is "six hundred seventy-seven million, three hundred ninety-nine thousand, two hundred ninety-one".