63863497 has 4 divisors (see below), whose sum is σ = 64216516. Its totient is φ = 63510480.

The previous prime is 63863489. The next prime is 63863531. The reversal of 63863497 is 79436836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35176761 + 28686736 = 5931^2 + 5356^2 .

It is a cyclic number.

It is not a de Polignac number, because 63863497 - 2³ = 63863489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63863447) 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, 176238 + ... + 176599.

It is an arithmetic number, because the mean of its divisors is an integer number (16054129).

Almost surely, 2^63863497 is an apocalyptic number.

It is an amenable number.

63863497 is a deficient number, since it is larger than the sum of its proper divisors (353019).

63863497 is a wasteful number, since it uses less digits than its factorization.

63863497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353018.

The product of its digits is 653184, while the sum is 46.

The square root of 63863497 is about 7991.4640085531. The cubic root of 63863497 is about 399.7154163284.

The spelling of 63863497 in words is "sixty-three million, eight hundred sixty-three thousand, four hundred ninety-seven".