63906694 has 8 divisors (see below), whose sum is σ = 95919048. Its totient is φ = 31933680.

The previous prime is 63906683. The next prime is 63906701. The reversal of 63906694 is 49660936.

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

It is a self number, because there is not a number n which added to its sum of digits gives 63906694.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5367 + ... + 12514.

It is an arithmetic number, because the mean of its divisors is an integer number (11989881).

Almost surely, 2^63906694 is an apocalyptic number.

63906694 is a deficient number, since it is larger than the sum of its proper divisors (32012354).

63906694 is a wasteful number, since it uses less digits than its factorization.

63906694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19670.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 63906694 is about 7994.1662479586. The cubic root of 63906694 is about 399.8055179572.

The spelling of 63906694 in words is "sixty-three million, nine hundred six thousand, six hundred ninety-four".