349937777 has 4 divisors (see below), whose sum is σ = 399928896. Its totient is φ = 299946660.

The previous prime is 349937773. The next prime is 349937779. The reversal of 349937777 is 777739943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 777739943 = 521 ⋅1492783.

It is a cyclic number.

It is not a de Polignac number, because 349937777 - 2² = 349937773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349937773) 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, 24995549 + ... + 24995562.

It is an arithmetic number, because the mean of its divisors is an integer number (99982224).

Almost surely, 2^349937777 is an apocalyptic number.

It is an amenable number.

349937777 is a deficient number, since it is larger than the sum of its proper divisors (49991119).

349937777 is an equidigital number, since it uses as much as digits as its factorization.

349937777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49991118.

The product of its digits is 7001316, while the sum is 56.

The square root of 349937777 is about 18706.6238803265. The cubic root of 349937777 is about 704.6881084391.

The spelling of 349937777 in words is "three hundred forty-nine million, nine hundred thirty-seven thousand, seven hundred seventy-seven".