80646367 has 2 divisors, whose sum is σ = 80646368. Its totient is φ = 80646366.

The previous prime is 80646323. The next prime is 80646373. The reversal of 80646367 is 76364608.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80646367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80647367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40323183 + 40323184.

It is an arithmetic number, because the mean of its divisors is an integer number (40323184).

Almost surely, 2^80646367 is an apocalyptic number.

80646367 is a deficient number, since it is larger than the sum of its proper divisors (1).

80646367 is an equidigital number, since it uses as much as digits as its factorization.

80646367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 80646367 is about 8980.3322321616. The cubic root of 80646367 is about 432.0442895121.

The spelling of 80646367 in words is "eighty million, six hundred forty-six thousand, three hundred sixty-seven".