63493799 has 4 divisors (see below), whose sum is σ = 63588264. Its totient is φ = 63399336.

The previous prime is 63493753. The next prime is 63493811. The reversal of 63493799 is 99739436.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63493799 is a prime.

It is a super-2 number, since 2×63493799² = 8062925022904802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63496799) 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, 46217 + ... + 47570.

It is an arithmetic number, because the mean of its divisors is an integer number (15897066).

Almost surely, 2^63493799 is an apocalyptic number.

63493799 is a deficient number, since it is larger than the sum of its proper divisors (94465).

63493799 is an equidigital number, since it uses as much as digits as its factorization.

63493799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94464.

The product of its digits is 1102248, while the sum is 50.

The square root of 63493799 is about 7968.2996304105. The cubic root of 63493799 is about 398.9426219253.

The spelling of 63493799 in words is "sixty-three million, four hundred ninety-three thousand, seven hundred ninety-nine".