63408247 has 8 divisors (see below), whose sum is σ = 72519552. Its totient is φ = 54310200.

The previous prime is 63408227. The next prime is 63408251. The reversal of 63408247 is 74280436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63408247 - 2⁷ = 63408119 is a prime.

It is a super-2 number, since 2×63408247² = 8041211575226018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63408227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11172 + ... + 15862.

It is an arithmetic number, because the mean of its divisors is an integer number (9064944).

Almost surely, 2^63408247 is an apocalyptic number.

63408247 is a deficient number, since it is larger than the sum of its proper divisors (9111305).

63408247 is a wasteful number, since it uses less digits than its factorization.

63408247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 63408247 is about 7962.9295488532. The cubic root of 63408247 is about 398.7633620061.

The spelling of 63408247 in words is "sixty-three million, four hundred eight thousand, two hundred forty-seven".