63985426 has 32 divisors (see below), whose sum is σ = 107942400. Its totient is φ = 28304640.

The previous prime is 63985421. The next prime is 63985429. The reversal of 63985426 is 62458936.

It is not an unprimeable number, because it can be changed into a prime (63985421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33226 + ... + 35098.

It is an arithmetic number, because the mean of its divisors is an integer number (3373200).

Almost surely, 2^63985426 is an apocalyptic number.

63985426 is a deficient number, since it is larger than the sum of its proper divisors (43956974).

63985426 is a wasteful number, since it uses less digits than its factorization.

63985426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

The product of its digits is 311040, while the sum is 43.

The square root of 63985426 is about 7999.0890731383. The cubic root of 63985426 is about 399.9696351950.

The spelling of 63985426 in words is "sixty-three million, nine hundred eighty-five thousand, four hundred twenty-six".