9160621 has 2 divisors, whose sum is σ = 9160622. Its totient is φ = 9160620.

The previous prime is 9160579. The next prime is 9160643. The reversal of 9160621 is 1260619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7214596 + 1946025 = 2686^2 + 1395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9160621 is a prime.

9160621 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9160661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4580310 + 4580311.

It is an arithmetic number, because the mean of its divisors is an integer number (4580311).

Almost surely, 2^9160621 is an apocalyptic number.

It is an amenable number.

9160621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9160621 is an equidigital number, since it uses as much as digits as its factorization.

9160621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9160621 is about 3026.6517804333. The cubic root of 9160621 is about 209.2385195349.

The spelling of 9160621 in words is "nine million, one hundred sixty thousand, six hundred twenty-one".