10605987 has 24 divisors (see below), whose sum is σ = 17738240. Its totient is φ = 5981040.

The previous prime is 10605983. The next prime is 10606007. The reversal of 10605987 is 78950601.

10605987 is a `hidden beast` number, since 1 + 0 + 60 + 598 + 7 = 666.

10605987 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10605987 - 2² = 10605983 is a prime.

It is a super-2 number, since 2×10605987² = 224973920488338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10605983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3912 + ... + 6042.

Almost surely, 2^10605987 is an apocalyptic number.

10605987 is a deficient number, since it is larger than the sum of its proper divisors (7132253).

10605987 is a wasteful number, since it uses less digits than its factorization.

10605987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 10605987 is about 3256.6834356443. The cubic root of 10605987 is about 219.7102728838.

The spelling of 10605987 in words is "ten million, six hundred five thousand, nine hundred eighty-seven".