349577677 has 2 divisors, whose sum is σ = 349577678. Its totient is φ = 349577676.

The previous prime is 349577653. The next prime is 349577693. The reversal of 349577677 is 776775943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212547241 + 137030436 = 14579^2 + 11706^2 .

It is an emirp because it is prime and its reverse (776775943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349577677 - 2⁷ = 349577549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349577377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174788838 + 174788839.

It is an arithmetic number, because the mean of its divisors is an integer number (174788839).

Almost surely, 2^349577677 is an apocalyptic number.

It is an amenable number.

349577677 is a deficient number, since it is larger than the sum of its proper divisors (1).

349577677 is an equidigital number, since it uses as much as digits as its factorization.

349577677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7779240, while the sum is 55.

The square root of 349577677 is about 18696.9964700216. The cubic root of 349577677 is about 704.4463080422.

The spelling of 349577677 in words is "three hundred forty-nine million, five hundred seventy-seven thousand, six hundred seventy-seven".