63116993 has 4 divisors (see below), whose sum is σ = 66438960. Its totient is φ = 59795028.

The previous prime is 63116987. The next prime is 63117017. The reversal of 63116993 is 39961136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63116993 - 2⁶ = 63116929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63116923) 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, 1660955 + ... + 1660992.

It is an arithmetic number, because the mean of its divisors is an integer number (16609740).

Almost surely, 2^63116993 is an apocalyptic number.

It is an amenable number.

63116993 is a deficient number, since it is larger than the sum of its proper divisors (3321967).

63116993 is a wasteful number, since it uses less digits than its factorization.

63116993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321966.

The product of its digits is 26244, while the sum is 38.

The square root of 63116993 is about 7944.6203811132. The cubic root of 63116993 is about 398.1518763314.

The spelling of 63116993 in words is "sixty-three million, one hundred sixteen thousand, nine hundred ninety-three".