80681407 has 2 divisors, whose sum is σ = 80681408. Its totient is φ = 80681406.

The previous prime is 80681387. The next prime is 80681413. The reversal of 80681407 is 70418608.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80681407 is a prime.

It is equal to p_4706809 and since 80681407 and 4706809 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80681417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40340703 + 40340704.

It is an arithmetic number, because the mean of its divisors is an integer number (40340704).

Almost surely, 2^80681407 is an apocalyptic number.

80681407 is a deficient number, since it is larger than the sum of its proper divisors (1).

80681407 is an equidigital number, since it uses as much as digits as its factorization.

80681407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 80681407 is about 8982.2829503417. The cubic root of 80681407 is about 432.1068533549.

The spelling of 80681407 in words is "eighty million, six hundred eighty-one thousand, four hundred seven".