10421187 has 16 divisors (see below), whose sum is σ = 16814592. Its totient is φ = 5604480.

The previous prime is 10421143. The next prime is 10421207. The reversal of 10421187 is 78112401.

10421187 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 10421187 - 2⁶ = 10421123 is a prime.

It is a super-2 number, since 2×10421187² = 217202276977938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10421107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14239 + ... + 14952.

It is an arithmetic number, because the mean of its divisors is an integer number (1050912).

Almost surely, 2^10421187 is an apocalyptic number.

10421187 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

10421187 is a deficient number, since it is larger than the sum of its proper divisors (6393405).

10421187 is a wasteful number, since it uses less digits than its factorization.

10421187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29218.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 10421187 is about 3228.1863329120. The cubic root of 10421187 is about 218.4267026147.

Adding to 10421187 its reverse (78112401), we get a palindrome (88533588).

The spelling of 10421187 in words is "ten million, four hundred twenty-one thousand, one hundred eighty-seven".