63616943 has 8 divisors (see below), whose sum is σ = 68871936. Its totient is φ = 58413600.

The previous prime is 63616939. The next prime is 63616999. The reversal of 63616943 is 34961636.

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

It is a cyclic number.

It is not a de Polignac number, because 63616943 - 2² = 63616939 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63616897 and 63616906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63616913) 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, 10328 + ... + 15293.

It is an arithmetic number, because the mean of its divisors is an integer number (8608992).

Almost surely, 2^63616943 is an apocalyptic number.

63616943 is a deficient number, since it is larger than the sum of its proper divisors (5254993).

63616943 is a wasteful number, since it uses less digits than its factorization.

63616943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25825.

The product of its digits is 69984, while the sum is 38.

The square root of 63616943 is about 7976.0230064864. The cubic root of 63616943 is about 399.2003671167.

The spelling of 63616943 in words is "sixty-three million, six hundred sixteen thousand, nine hundred forty-three".