63243667 has 4 divisors (see below), whose sum is σ = 63954360. Its totient is φ = 62532976.

The previous prime is 63243659. The next prime is 63243673. The reversal of 63243667 is 76634236.

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 63243667 - 2³ = 63243659 is a prime.

It is a super-2 number, since 2×63243667² = 7999522831213778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63243637) 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, 355213 + ... + 355390.

It is an arithmetic number, because the mean of its divisors is an integer number (15988590).

Almost surely, 2^63243667 is an apocalyptic number.

63243667 is a deficient number, since it is larger than the sum of its proper divisors (710693).

63243667 is an equidigital number, since it uses as much as digits as its factorization.

63243667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710692.

The product of its digits is 108864, while the sum is 37.

The square root of 63243667 is about 7952.5886980278. The cubic root of 63243667 is about 398.4180581476.

The spelling of 63243667 in words is "sixty-three million, two hundred forty-three thousand, six hundred sixty-seven".