7923161 has 2 divisors, whose sum is σ = 7923162. Its totient is φ = 7923160.

The previous prime is 7923131. The next prime is 7923187. The reversal of 7923161 is 1613297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 1547536 = 2525^2 + 1244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7923161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7923131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3961580 + 3961581.

It is an arithmetic number, because the mean of its divisors is an integer number (3961581).

Almost surely, 2^7923161 is an apocalyptic number.

It is an amenable number.

7923161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7923161 is an equidigital number, since it uses as much as digits as its factorization.

7923161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 7923161 is about 2814.8110060890. The cubic root of 7923161 is about 199.3576139096.

The spelling of 7923161 in words is "seven million, nine hundred twenty-three thousand, one hundred sixty-one".