349339877 has 4 divisors (see below), whose sum is σ = 352544940. Its totient is φ = 346134816.

The previous prime is 349339849. The next prime is 349339883. The reversal of 349339877 is 778933943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778933943 = 439 ⋅1774337.

It can be written as a sum of positive squares in 2 ways, for example, as 114361636 + 234978241 = 10694^2 + 15329^2 .

It is a cyclic number.

It is not a de Polignac number, because 349339877 - 2⁸ = 349339621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349336877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602368 + ... + 1602585.

It is an arithmetic number, because the mean of its divisors is an integer number (88136235).

Almost surely, 2^349339877 is an apocalyptic number.

It is an amenable number.

349339877 is a deficient number, since it is larger than the sum of its proper divisors (3205063).

349339877 is a wasteful number, since it uses less digits than its factorization.

349339877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205062.

The product of its digits is 3429216, while the sum is 53.

The square root of 349339877 is about 18690.6360779937. The cubic root of 349339877 is about 704.2865387530.

The spelling of 349339877 in words is "three hundred forty-nine million, three hundred thirty-nine thousand, eight hundred seventy-seven".