80965069 has 2 divisors, whose sum is σ = 80965070. Its totient is φ = 80965068.

The previous prime is 80965043. The next prime is 80965121. The reversal of 80965069 is 96056908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76912900 + 4052169 = 8770^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 80965069 - 2¹³ = 80956877 is a prime.

It is a super-2 number, since 2×80965069² = 13110684796349522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80965019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40482534 + 40482535.

It is an arithmetic number, because the mean of its divisors is an integer number (40482535).

Almost surely, 2^80965069 is an apocalyptic number.

It is an amenable number.

80965069 is a deficient number, since it is larger than the sum of its proper divisors (1).

80965069 is an equidigital number, since it uses as much as digits as its factorization.

80965069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 80965069 is about 8998.0591796231. The cubic root of 80965069 is about 432.6126655818.

The spelling of 80965069 in words is "eighty million, nine hundred sixty-five thousand, sixty-nine".