623538064 has 20 divisors (see below), whose sum is σ = 1208494080. Its totient is φ = 311668640.

The previous prime is 623538037. The next prime is 623538103. The reversal of 623538064 is 460835326.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86769 + ... + 93679.

It is an arithmetic number, because the mean of its divisors is an integer number (60424704).

Almost surely, 2^623538064 is an apocalyptic number.

It is an amenable number.

623538064 is a deficient number, since it is larger than the sum of its proper divisors (584956016).

623538064 is a wasteful number, since it uses less digits than its factorization.

623538064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558 (or 12552 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 623538064 is about 24970.7441619188. The cubic root of 623538064 is about 854.3208194495.

The spelling of 623538064 in words is "six hundred twenty-three million, five hundred thirty-eight thousand, sixty-four".