345647263 has 4 divisors (see below), whose sum is σ = 372235528. Its totient is φ = 319059000.

The previous prime is 345647249. The next prime is 345647321. The reversal of 345647263 is 362746543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362746543 = 179 ⋅2026517.

It is not a de Polignac number, because 345647263 - 2⁵ = 345647231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345647233) 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, 13294113 + ... + 13294138.

It is an arithmetic number, because the mean of its divisors is an integer number (93058882).

Almost surely, 2^345647263 is an apocalyptic number.

345647263 is a deficient number, since it is larger than the sum of its proper divisors (26588265).

345647263 is a wasteful number, since it uses less digits than its factorization.

345647263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26588264.

The product of its digits is 362880, while the sum is 40.

The square root of 345647263 is about 18591.5911906432. The cubic root of 345647263 is about 701.7962459560.

The spelling of 345647263 in words is "three hundred forty-five million, six hundred forty-seven thousand, two hundred sixty-three".