63540207 has 10 divisors (see below), whose sum is σ = 94918208. Its totient is φ = 42360084.

The previous prime is 63540181. The next prime is 63540209. The reversal of 63540207 is 70204536.

It is a happy number.

63540207 is a `hidden beast` number, since 635 + 4 + 0 + 20 + 7 = 666.

It is not a de Polignac number, because 63540207 - 2⁶ = 63540143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63540209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 392143 + ... + 392304.

Almost surely, 2^63540207 is an apocalyptic number.

63540207 is a deficient number, since it is larger than the sum of its proper divisors (31378001).

63540207 is an equidigital number, since it uses as much as digits as its factorization.

63540207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784459 (or 784450 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 63540207 is about 7971.2111375876. The cubic root of 63540207 is about 399.0397947759.

The spelling of 63540207 in words is "sixty-three million, five hundred forty thousand, two hundred seven".