345223677 has 4 divisors (see below), whose sum is σ = 460298240. Its totient is φ = 230149116.

The previous prime is 345223667. The next prime is 345223687. The reversal of 345223677 is 776322543.

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.

It is an interprime number because it is at equal distance from previous prime (345223667) and next prime (345223687).

It is not a de Polignac number, because 345223677 - 2⁴ = 345223661 is a prime.

It is a super-2 number, since 2×345223677² = 238358774322800658, 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 (345223667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57537277 + ... + 57537282.

It is an arithmetic number, because the mean of its divisors is an integer number (115074560).

Almost surely, 2^345223677 is an apocalyptic number.

It is an amenable number.

345223677 is a deficient number, since it is larger than the sum of its proper divisors (115074563).

345223677 is a wasteful number, since it uses less digits than its factorization.

345223677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115074562.

The product of its digits is 211680, while the sum is 39.

The square root of 345223677 is about 18580.1958278162. The cubic root of 345223677 is about 701.5094481971.

The spelling of 345223677 in words is "three hundred forty-five million, two hundred twenty-three thousand, six hundred seventy-seven".