80906233 has 2 divisors, whose sum is σ = 80906234. Its totient is φ = 80906232.

The previous prime is 80906207. The next prime is 80906261. The reversal of 80906233 is 33260908.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73222249 + 7683984 = 8557^2 + 2772^2 .

It is a cyclic number.

It is not a de Polignac number, because 80906233 - 2¹⁷ = 80775161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80906195 and 80906204.

It is not a weakly prime, because it can be changed into another prime (80906333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40453116 + 40453117.

It is an arithmetic number, because the mean of its divisors is an integer number (40453117).

Almost surely, 2^80906233 is an apocalyptic number.

It is an amenable number.

80906233 is a deficient number, since it is larger than the sum of its proper divisors (1).

80906233 is an equidigital number, since it uses as much as digits as its factorization.

80906233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 80906233 is about 8994.7892137615. The cubic root of 80906233 is about 432.5078493235.

The spelling of 80906233 in words is "eighty million, nine hundred six thousand, two hundred thirty-three".