63347961 has 8 divisors (see below), whose sum is σ = 84769984. Its totient is φ = 42078960.

The previous prime is 63347953. The next prime is 63347971. The reversal of 63347961 is 16974336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63347961 - 2³ = 63347953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63347941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37285 + ... + 38946.

It is an arithmetic number, because the mean of its divisors is an integer number (10596248).

Almost surely, 2^63347961 is an apocalyptic number.

It is an amenable number.

63347961 is a deficient number, since it is larger than the sum of its proper divisors (21422023).

63347961 is a wasteful number, since it uses less digits than its factorization.

63347961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76511.

The product of its digits is 81648, while the sum is 39.

The square root of 63347961 is about 7959.1432327858. The cubic root of 63347961 is about 398.6369459014.

The spelling of 63347961 in words is "sixty-three million, three hundred forty-seven thousand, nine hundred sixty-one".