9487203421 has 16 divisors (see below), whose sum is σ = 9615672000. Its totient is φ = 9359981568.

The previous prime is 9487203409. The next prime is 9487203431. The reversal of 9487203421 is 1243027849.

It is a cyclic number.

It is not a de Polignac number, because 9487203421 - 2⁷ = 9487203293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9487203431) 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, 21129405 + ... + 21129853.

It is an arithmetic number, because the mean of its divisors is an integer number (600979500).

Almost surely, 2^9487203421 is an apocalyptic number.

It is an amenable number.

9487203421 is a deficient number, since it is larger than the sum of its proper divisors (128468579).

9487203421 is a wasteful number, since it uses less digits than its factorization.

9487203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 9487203421 is about 97402.2762619026. The cubic root of 9487203421 is about 2116.9604165639.

The spelling of 9487203421 in words is "nine billion, four hundred eighty-seven million, two hundred three thousand, four hundred twenty-one".