34399563 has 16 divisors (see below), whose sum is σ = 50160000. Its totient is φ = 20796480.

The previous prime is 34399507. The next prime is 34399567. The reversal of 34399563 is 36599343.

It is not a de Polignac number, because 34399563 - 2⁹ = 34399051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34399567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15423 + ... + 17511.

It is an arithmetic number, because the mean of its divisors is an integer number (3135000).

Almost surely, 2^34399563 is an apocalyptic number.

34399563 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

34399563 is a deficient number, since it is larger than the sum of its proper divisors (15760437).

34399563 is a wasteful number, since it uses less digits than its factorization.

34399563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602.

The product of its digits is 262440, while the sum is 42.

The square root of 34399563 is about 5865.1140653870. The cubic root of 34399563 is about 325.2252891589.

It can be divided in two parts, 3 and 4399563, that multiplied together give a square (13198689 = 3633²).

The spelling of 34399563 in words is "thirty-four million, three hundred ninety-nine thousand, five hundred sixty-three".