345342277 has 4 divisors (see below), whose sum is σ = 394676896. Its totient is φ = 296007660.

The previous prime is 345342269. The next prime is 345342287. The reversal of 345342277 is 772243543.

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: 772243543 = 19 ⋅40644397.

It is a cyclic number.

It is not a de Polignac number, because 345342277 - 2³ = 345342269 is a prime.

It is a super-2 number, since 2×345342277² = 238522576567089458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345342227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24667299 + ... + 24667312.

It is an arithmetic number, because the mean of its divisors is an integer number (98669224).

Almost surely, 2^345342277 is an apocalyptic number.

It is an amenable number.

345342277 is a deficient number, since it is larger than the sum of its proper divisors (49334619).

345342277 is an equidigital number, since it uses as much as digits as its factorization.

345342277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49334618.

The product of its digits is 141120, while the sum is 37.

The square root of 345342277 is about 18583.3871239879. The cubic root of 345342277 is about 701.5897724432.

The spelling of 345342277 in words is "three hundred forty-five million, three hundred forty-two thousand, two hundred seventy-seven".