63806475 has 12 divisors (see below), whose sum is σ = 105493496. Its totient is φ = 34030080.

The previous prime is 63806473. The next prime is 63806489. The reversal of 63806475 is 57460836.

It is not a de Polignac number, because 63806475 - 2¹ = 63806473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63806471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425302 + ... + 425451.

Almost surely, 2^63806475 is an apocalyptic number.

63806475 is a deficient number, since it is larger than the sum of its proper divisors (41687021).

63806475 is a wasteful number, since it uses less digits than its factorization.

63806475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850766 (or 850761 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 63806475 is about 7987.8955301130. The cubic root of 63806475 is about 399.5964158532.

The spelling of 63806475 in words is "sixty-three million, eight hundred six thousand, four hundred seventy-five".