63690527 has 16 divisors (see below), whose sum is σ = 68745600. Its totient is φ = 58825440.

The previous prime is 63690521. The next prime is 63690533. The reversal of 63690527 is 72509636.

It is an interprime number because it is at equal distance from previous prime (63690521) and next prime (63690533).

It is a cyclic number.

It is not a de Polignac number, because 63690527 - 2⁶ = 63690463 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63690521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207308 + ... + 207614.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2^63690527 is an apocalyptic number.

63690527 is a deficient number, since it is larger than the sum of its proper divisors (5055073).

63690527 is a wasteful number, since it uses less digits than its factorization.

63690527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 63690527 is about 7980.6344985847. The cubic root of 63690527 is about 399.3542225732.

The spelling of 63690527 in words is "sixty-three million, six hundred ninety thousand, five hundred twenty-seven".