80914649 has 2 divisors, whose sum is σ = 80914650. Its totient is φ = 80914648.

The previous prime is 80914633. The next prime is 80914751. The reversal of 80914649 is 94641908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80910025 + 4624 = 8995^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 80914649 - 2⁴ = 80914633 is a prime.

It is not a weakly prime, because it can be changed into another prime (80914049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40457324 + 40457325.

It is an arithmetic number, because the mean of its divisors is an integer number (40457325).

Almost surely, 2^80914649 is an apocalyptic number.

It is an amenable number.

80914649 is a deficient number, since it is larger than the sum of its proper divisors (1).

80914649 is an equidigital number, since it uses as much as digits as its factorization.

80914649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 80914649 is about 8995.2570280120. The cubic root of 80914649 is about 432.5228455305.

The spelling of 80914649 in words is "eighty million, nine hundred fourteen thousand, six hundred forty-nine".