10065421 has 16 divisors (see below), whose sum is σ = 11427840. Its totient is φ = 8814960.

The previous prime is 10065409. The next prime is 10065431. The reversal of 10065421 is 12456001.

It is a cyclic number.

It is not a de Polignac number, because 10065421 - 2¹⁵ = 10032653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10065401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13176 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 2^10065421 is an apocalyptic number.

It is an amenable number.

10065421 is a deficient number, since it is larger than the sum of its proper divisors (1362419).

10065421 is a wasteful number, since it uses less digits than its factorization.

10065421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10065421 is about 3172.6047658036. The cubic root of 10065421 is about 215.9122657524.

The spelling of 10065421 in words is "ten million, sixty-five thousand, four hundred twenty-one".