677907739 has 2 divisors, whose sum is σ = 677907740. Its totient is φ = 677907738.

The previous prime is 677907697. The next prime is 677907779. The reversal of 677907739 is 937709776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677907739 - 2¹¹ = 677905691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677907739.

It is not a weakly prime, because it can be changed into another prime (677907779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338953869 + 338953870.

It is an arithmetic number, because the mean of its divisors is an integer number (338953870).

Almost surely, 2^677907739 is an apocalyptic number.

677907739 is a deficient number, since it is larger than the sum of its proper divisors (1).

677907739 is an equidigital number, since it uses as much as digits as its factorization.

677907739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500658, while the sum is 55.

The square root of 677907739 is about 26036.6614411295. The cubic root of 677907739 is about 878.4631141971.

The spelling of 677907739 in words is "six hundred seventy-seven million, nine hundred seven thousand, seven hundred thirty-nine".