9106627421 has 4 divisors (see below), whose sum is σ = 9173099292. Its totient is φ = 9040155552.

The previous prime is 9106627379. The next prime is 9106627447. The reversal of 9106627421 is 1247266019.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8030131321 + 1076496100 = 89611^2 + 32810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9106627421 is a prime.

It is a super-2 number, since 2×9106627421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9106627121) 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, 33235730 + ... + 33236003.

It is an arithmetic number, because the mean of its divisors is an integer number (2293274823).

Almost surely, 2^9106627421 is an apocalyptic number.

It is an amenable number.

9106627421 is a deficient number, since it is larger than the sum of its proper divisors (66471871).

9106627421 is a wasteful number, since it uses less digits than its factorization.

9106627421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66471870.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 9106627421 is about 95428.6509440430. The cubic root of 9106627421 is about 2088.2661857475.

The spelling of 9106627421 in words is "nine billion, one hundred six million, six hundred twenty-seven thousand, four hundred twenty-one".