60987993 has 24 divisors (see below), whose sum is σ = 94649184. Its totient is φ = 34784640.

The previous prime is 60987989. The next prime is 60988003. The reversal of 60987993 is 39978906.

60987993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 60987993 - 2² = 60987989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (60987293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1230 + ... + 11112.

It is an arithmetic number, because the mean of its divisors is an integer number (3943716).

Almost surely, 2^60987993 is an apocalyptic number.

It is an amenable number.

60987993 is a deficient number, since it is larger than the sum of its proper divisors (33661191).

60987993 is a wasteful number, since it uses less digits than its factorization.

60987993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9925 (or 9914 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 60987993 is about 7809.4809686688. The cubic root of 60987993 is about 393.6238884615.

The spelling of 60987993 in words is "sixty million, nine hundred eighty-seven thousand, nine hundred ninety-three".