63474245 has 4 divisors (see below), whose sum is σ = 76169100. Its totient is φ = 50779392.

The previous prime is 63474241. The next prime is 63474253. The reversal of 63474245 is 54247436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22591009 + 40883236 = 4753^2 + 6394^2 .

It is a cyclic number.

It is not a de Polignac number, because 63474245 - 2² = 63474241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63474241) 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 3 ways as a sum of consecutive naturals, for example, 6347420 + ... + 6347429.

It is an arithmetic number, because the mean of its divisors is an integer number (19042275).

Almost surely, 2^63474245 is an apocalyptic number.

It is an amenable number.

63474245 is a deficient number, since it is larger than the sum of its proper divisors (12694855).

63474245 is a wasteful number, since it uses less digits than its factorization.

63474245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12694854.

The product of its digits is 80640, while the sum is 35.

The square root of 63474245 is about 7967.0725489354. The cubic root of 63474245 is about 398.9016639887.

The spelling of 63474245 in words is "sixty-three million, four hundred seventy-four thousand, two hundred forty-five".