80339261 has 2 divisors, whose sum is σ = 80339262. Its totient is φ = 80339260.

The previous prime is 80339221. The next prime is 80339267. The reversal of 80339261 is 16293308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 25060036 = 7435^2 + 5006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80339261 is a prime.

It is a super-2 number, since 2×80339261² = 12908793716052242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80339267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40169630 + 40169631.

It is an arithmetic number, because the mean of its divisors is an integer number (40169631).

Almost surely, 2^80339261 is an apocalyptic number.

It is an amenable number.

80339261 is a deficient number, since it is larger than the sum of its proper divisors (1).

80339261 is an equidigital number, since it uses as much as digits as its factorization.

80339261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 80339261 is about 8963.2171121757. The cubic root of 80339261 is about 431.4951754076.

The spelling of 80339261 in words is "eighty million, three hundred thirty-nine thousand, two hundred sixty-one".