345285777 has 8 divisors (see below), whose sum is σ = 460501216. Its totient is φ = 230130432.

The previous prime is 345285757. The next prime is 345285797. The reversal of 345285777 is 777582543.

It is an interprime number because it is at equal distance from previous prime (345285757) and next prime (345285797).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345285777 - 2¹⁹ = 344761489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345285757) 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 7 ways as a sum of consecutive naturals, for example, 753 + ... + 26289.

It is an arithmetic number, because the mean of its divisors is an integer number (57562652).

Almost surely, 2^345285777 is an apocalyptic number.

It is an amenable number.

345285777 is a deficient number, since it is larger than the sum of its proper divisors (115215439).

345285777 is a wasteful number, since it uses less digits than its factorization.

345285777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30047.

The product of its digits is 1646400, while the sum is 48.

The square root of 345285777 is about 18581.8668868335. The cubic root of 345285777 is about 701.5515089708.

The spelling of 345285777 in words is "three hundred forty-five million, two hundred eighty-five thousand, seven hundred seventy-seven".