9870501 has 4 divisors (see below), whose sum is σ = 13160672. Its totient is φ = 6580332.

The previous prime is 9870499. The next prime is 9870503. The reversal of 9870501 is 1050789.

9870501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (9870499) and next prime (9870503).

It is not a de Polignac number, because 9870501 - 2¹ = 9870499 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9870503) 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, 1645081 + ... + 1645086.

It is an arithmetic number, because the mean of its divisors is an integer number (3290168).

Almost surely, 2^9870501 is an apocalyptic number.

It is an amenable number.

9870501 is a deficient number, since it is larger than the sum of its proper divisors (3290171).

9870501 is a wasteful number, since it uses less digits than its factorization.

9870501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290170.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 9870501 is about 3141.7353484977. The cubic root of 9870501 is about 214.5094349825.

The spelling of 9870501 in words is "nine million, eight hundred seventy thousand, five hundred one".