10388985 has 16 divisors (see below), whose sum is σ = 17345664. Its totient is φ = 5299712.

The previous prime is 10388957. The next prime is 10388993. The reversal of 10388985 is 58988301.

It is a cyclic number.

It is not a de Polignac number, because 10388985 - 2¹⁰ = 10387961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14712 + ... + 15401.

It is an arithmetic number, because the mean of its divisors is an integer number (1084104).

Almost surely, 2^10388985 is an apocalyptic number.

10388985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10388985 is a deficient number, since it is larger than the sum of its proper divisors (6956679).

10388985 is a wasteful number, since it uses less digits than its factorization.

10388985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30144.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 10388985 is about 3223.1948436295. The cubic root of 10388985 is about 218.2014872577.

The spelling of 10388985 in words is "ten million, three hundred eighty-eight thousand, nine hundred eighty-five".