63928534 has 12 divisors (see below), whose sum is σ = 101866284. Its totient is φ = 30083744.

The previous prime is 63928531. The next prime is 63928537. The reversal of 63928534 is 43582936.

It is an interprime number because it is at equal distance from previous prime (63928531) and next prime (63928537).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63928531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54724 + ... + 55879.

It is an arithmetic number, because the mean of its divisors is an integer number (8488857).

Almost surely, 2^63928534 is an apocalyptic number.

63928534 is a deficient number, since it is larger than the sum of its proper divisors (37937750).

63928534 is a wasteful number, since it uses less digits than its factorization.

63928534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110639 (or 110622 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 63928534 is about 7995.5321273821. The cubic root of 63928534 is about 399.8510570469.

The spelling of 63928534 in words is "sixty-three million, nine hundred twenty-eight thousand, five hundred thirty-four".