349419977 has 2 divisors, whose sum is σ = 349419978. Its totient is φ = 349419976.

The previous prime is 349419953. The next prime is 349420031. The reversal of 349419977 is 779914943.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309021241 + 40398736 = 17579^2 + 6356^2 .

It is a cyclic number.

It is not a de Polignac number, because 349419977 - 2¹² = 349415881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (349469977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174709988 + 174709989.

It is an arithmetic number, because the mean of its divisors is an integer number (174709989).

Almost surely, 2^349419977 is an apocalyptic number.

It is an amenable number.

349419977 is a deficient number, since it is larger than the sum of its proper divisors (1).

349419977 is an equidigital number, since it uses as much as digits as its factorization.

349419977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 349419977 is about 18692.7787393956. The cubic root of 349419977 is about 704.3403631653.

The spelling of 349419977 in words is "three hundred forty-nine million, four hundred nineteen thousand, nine hundred seventy-seven".