80329261 has 2 divisors, whose sum is σ = 80329262. Its totient is φ = 80329260.

The previous prime is 80329241. The next prime is 80329279. The reversal of 80329261 is 16292308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64480900 + 15848361 = 8030^2 + 3981^2 .

It is a cyclic number.

It is not a de Polignac number, because 80329261 - 2¹⁵ = 80296493 is a prime.

It is a super-2 number, since 2×80329261² = 12905580345612242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80329201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40164630 + 40164631.

It is an arithmetic number, because the mean of its divisors is an integer number (40164631).

Almost surely, 2^80329261 is an apocalyptic number.

It is an amenable number.

80329261 is a deficient number, since it is larger than the sum of its proper divisors (1).

80329261 is an equidigital number, since it uses as much as digits as its factorization.

80329261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 80329261 is about 8962.6592593939. The cubic root of 80329261 is about 431.4772716217.

The spelling of 80329261 in words is "eighty million, three hundred twenty-nine thousand, two hundred sixty-one".