63612247 has 4 divisors (see below), whose sum is σ = 66960280. Its totient is φ = 60264216.

The previous prime is 63612239. The next prime is 63612253. The reversal of 63612247 is 74221636.

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 63612247 - 2³ = 63612239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63612277) 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, 1673988 + ... + 1674025.

It is an arithmetic number, because the mean of its divisors is an integer number (16740070).

Almost surely, 2^63612247 is an apocalyptic number.

63612247 is a deficient number, since it is larger than the sum of its proper divisors (3348033).

63612247 is a wasteful number, since it uses less digits than its factorization.

63612247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348032.

The product of its digits is 12096, while the sum is 31.

The square root of 63612247 is about 7975.7286187533. The cubic root of 63612247 is about 399.1905443086.

The spelling of 63612247 in words is "sixty-three million, six hundred twelve thousand, two hundred forty-seven".