9269665421 has 2 divisors, whose sum is σ = 9269665422. Its totient is φ = 9269665420.

The previous prime is 9269665397. The next prime is 9269665439. The reversal of 9269665421 is 1245669629.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5360289796 + 3909375625 = 73214^2 + 62525^2 .

It is an emirp because it is prime and its reverse (1245669629) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9269665421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9269665421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9269665721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4634832710 + 4634832711.

It is an arithmetic number, because the mean of its divisors is an integer number (4634832711).

Almost surely, 2^9269665421 is an apocalyptic number.

It is an amenable number.

9269665421 is a deficient number, since it is larger than the sum of its proper divisors (1).

9269665421 is an equidigital number, since it uses as much as digits as its factorization.

9269665421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 9269665421 is about 96279.1016835949. The cubic root of 9269665421 is about 2100.6547785102.

The spelling of 9269665421 in words is "nine billion, two hundred sixty-nine million, six hundred sixty-five thousand, four hundred twenty-one".