345978363 has 6 divisors (see below), whose sum is σ = 461347444. Its totient is φ = 230630764.

The previous prime is 345978361. The next prime is 345978371. The reversal of 345978363 is 363879543.

It is not a de Polignac number, because 345978363 - 2¹ = 345978361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345978361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26848 + ... + 37586.

Almost surely, 2^345978363 is an apocalyptic number.

345978363 is a deficient number, since it is larger than the sum of its proper divisors (115369081).

345978363 is an frugal number, since it uses more digits than its factorization.

345978363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21481 (or 10742 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The square root of 345978363 is about 18600.4936224822. The cubic root of 345978363 is about 702.0202610202.

Multiplying 345978363 by its sum of digits (48), we get a square (16606961424 = 128868²).

The spelling of 345978363 in words is "three hundred forty-five million, nine hundred seventy-eight thousand, three hundred sixty-three".