63705494 has 16 divisors (see below), whose sum is σ = 102569328. Its totient is φ = 29567232.

The previous prime is 63705493. The next prime is 63705497. The reversal of 63705494 is 49450736.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63705491) 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, 10352 + ... + 15315.

It is an arithmetic number, because the mean of its divisors is an integer number (6410583).

Almost surely, 2^63705494 is an apocalyptic number.

63705494 is a deficient number, since it is larger than the sum of its proper divisors (38863834).

63705494 is a wasteful number, since it uses less digits than its factorization.

63705494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25759.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 63705494 is about 7981.5721508986. The cubic root of 63705494 is about 399.3855022982.

The spelling of 63705494 in words is "sixty-three million, seven hundred five thousand, four hundred ninety-four".