63243299 has 4 divisors (see below), whose sum is σ = 72278064. Its totient is φ = 54208536.

The previous prime is 63243293. The next prime is 63243319. The reversal of 63243299 is 99234236.

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

It is a cyclic number.

It is not a de Polignac number, because 63243299 - 2⁴ = 63243283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63243293) 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, 4517372 + ... + 4517385.

It is an arithmetic number, because the mean of its divisors is an integer number (18069516).

Almost surely, 2^63243299 is an apocalyptic number.

63243299 is a deficient number, since it is larger than the sum of its proper divisors (9034765).

63243299 is an equidigital number, since it uses as much as digits as its factorization.

63243299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9034764.

The product of its digits is 69984, while the sum is 38.

The square root of 63243299 is about 7952.5655608741. The cubic root of 63243299 is about 398.4172853792.

The spelling of 63243299 in words is "sixty-three million, two hundred forty-three thousand, two hundred ninety-nine".