10420071 has 4 divisors (see below), whose sum is σ = 13893432. Its totient is φ = 6946712.

The previous prime is 10420009. The next prime is 10420079. The reversal of 10420071 is 17002401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10420071 - 2⁹ = 10419559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10420071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736676 + ... + 1736681.

It is an arithmetic number, because the mean of its divisors is an integer number (3473358).

Almost surely, 2^10420071 is an apocalyptic number.

10420071 is a deficient number, since it is larger than the sum of its proper divisors (3473361).

10420071 is an equidigital number, since it uses as much as digits as its factorization.

10420071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473360.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 10420071 is about 3228.0134758083. The cubic root of 10420071 is about 218.4189052655.

Adding to 10420071 its reverse (17002401), we get a palindrome (27422472).

The spelling of 10420071 in words is "ten million, four hundred twenty thousand, seventy-one".