93640563 has 8 divisors (see below), whose sum is σ = 138726800. Its totient is φ = 62427024.

The previous prime is 93640543. The next prime is 93640571. The reversal of 93640563 is 36504639.

93640563 is a `hidden beast` number, since 9 + 3 + 640 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 93640563 - 2⁶ = 93640499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93640543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734058 + ... + 1734111.

It is an arithmetic number, because the mean of its divisors is an integer number (17340850).

Almost surely, 2^93640563 is an apocalyptic number.

93640563 is a deficient number, since it is larger than the sum of its proper divisors (45086237).

93640563 is a wasteful number, since it uses less digits than its factorization.

93640563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468178 (or 3468172 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 93640563 is about 9676.8054129449. The cubic root of 93640563 is about 454.1033147370.

The spelling of 93640563 in words is "ninety-three million, six hundred forty thousand, five hundred sixty-three".