63793531 has 2 divisors, whose sum is σ = 63793532. Its totient is φ = 63793530.

The previous prime is 63793511. The next prime is 63793579. The reversal of 63793531 is 13539736.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63793531 - 2⁷ = 63793403 is a prime.

It is a super-2 number, since 2×63793531² = 8139229194895922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63793511) 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 as a sum of consecutive naturals, namely, 31896765 + 31896766.

It is an arithmetic number, because the mean of its divisors is an integer number (31896766).

Almost surely, 2^63793531 is an apocalyptic number.

63793531 is a deficient number, since it is larger than the sum of its proper divisors (1).

63793531 is an equidigital number, since it uses as much as digits as its factorization.

63793531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 37.

The square root of 63793531 is about 7987.0852630982. The cubic root of 63793531 is about 399.5693928601.

The spelling of 63793531 in words is "sixty-three million, seven hundred ninety-three thousand, five hundred thirty-one".