80622457 has 2 divisors, whose sum is σ = 80622458. Its totient is φ = 80622456.

The previous prime is 80622439. The next prime is 80622461. The reversal of 80622457 is 75422608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80622441 + 16 = 8979^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 80622457 - 2⁷ = 80622329 is a prime.

It is not a weakly prime, because it can be changed into another prime (80622257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40311228 + 40311229.

It is an arithmetic number, because the mean of its divisors is an integer number (40311229).

Almost surely, 2^80622457 is an apocalyptic number.

It is an amenable number.

80622457 is a deficient number, since it is larger than the sum of its proper divisors (1).

80622457 is an equidigital number, since it uses as much as digits as its factorization.

80622457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 80622457 is about 8979.0008909678. Note that the first 3 decimals coincide. The cubic root of 80622457 is about 432.0015878571.

The spelling of 80622457 in words is "eighty million, six hundred twenty-two thousand, four hundred fifty-seven".