63435313 has 4 divisors (see below), whose sum is σ = 67166820. Its totient is φ = 59703808.

The previous prime is 63435301. The next prime is 63435349. The reversal of 63435313 is 31353436.

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 34951744 + 28483569 = 5912^2 + 5337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63435313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63435413) 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, 1865728 + ... + 1865761.

It is an arithmetic number, because the mean of its divisors is an integer number (16791705).

Almost surely, 2^63435313 is an apocalyptic number.

It is an amenable number.

63435313 is a deficient number, since it is larger than the sum of its proper divisors (3731507).

63435313 is a wasteful number, since it uses less digits than its factorization.

63435313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731506.

The product of its digits is 9720, while the sum is 28.

The square root of 63435313 is about 7964.6288676874. The cubic root of 63435313 is about 398.8200917133.

Adding to 63435313 its reverse (31353436), we get a palindrome (94788749).

The spelling of 63435313 in words is "sixty-three million, four hundred thirty-five thousand, three hundred thirteen".