63787247 has 4 divisors (see below), whose sum is σ = 67539456. Its totient is φ = 60035040.

The previous prime is 63787193. The next prime is 63787291. The reversal of 63787247 is 74278736.

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 63787247 - 2¹⁰ = 63786223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63787198 and 63787207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63787547) 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, 1876079 + ... + 1876112.

It is an arithmetic number, because the mean of its divisors is an integer number (16884864).

Almost surely, 2^63787247 is an apocalyptic number.

63787247 is a deficient number, since it is larger than the sum of its proper divisors (3752209).

63787247 is a wasteful number, since it uses less digits than its factorization.

63787247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752208.

The product of its digits is 395136, while the sum is 44.

The square root of 63787247 is about 7986.6918683520. The cubic root of 63787247 is about 399.5562725302.

The spelling of 63787247 in words is "sixty-three million, seven hundred eighty-seven thousand, two hundred forty-seven".