63965426 has 16 divisors (see below), whose sum is σ = 109785984. Its totient is φ = 27381024.

The previous prime is 63965423. The next prime is 63965443. The reversal of 63965426 is 62456936.

It is a super-2 number, since 2×63965426² = 8183151446722952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63965423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12251 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (6861624).

Almost surely, 2^63965426 is an apocalyptic number.

63965426 is a deficient number, since it is larger than the sum of its proper divisors (45820558).

63965426 is a wasteful number, since it uses less digits than its factorization.

63965426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465.

The product of its digits is 233280, while the sum is 41.

The square root of 63965426 is about 7997.8388330848. The cubic root of 63965426 is about 399.9279578589.

The spelling of 63965426 in words is "sixty-three million, nine hundred sixty-five thousand, four hundred twenty-six".