63940558 has 16 divisors (see below), whose sum is σ = 104768640. Its totient is φ = 29025400.

The previous prime is 63940549. The next prime is 63940561. The reversal of 63940558 is 85504936.

It is a super-3 number, since 3×63940558³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63940558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21273 + ... + 24091.

It is an arithmetic number, because the mean of its divisors is an integer number (6548040).

Almost surely, 2^63940558 is an apocalyptic number.

63940558 is a deficient number, since it is larger than the sum of its proper divisors (40828082).

63940558 is a wasteful number, since it uses less digits than its factorization.

63940558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 63940558 is about 7996.2840119646. The cubic root of 63940558 is about 399.8761241409.

The spelling of 63940558 in words is "sixty-three million, nine hundred forty thousand, five hundred fifty-eight".