77232193 has 2 divisors, whose sum is σ = 77232194. Its totient is φ = 77232192.

The previous prime is 77232179. The next prime is 77232227. The reversal of 77232193 is 39123277.

It is an a-pointer prime, because the next prime (77232227) can be obtained adding 77232193 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77228944 + 3249 = 8788^2 + 57^2 .

It is a cyclic number.

It is not a de Polignac number, because 77232193 - 2⁹ = 77231681 is a prime.

It is not a weakly prime, because it can be changed into another prime (77238193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38616096 + 38616097.

It is an arithmetic number, because the mean of its divisors is an integer number (38616097).

Almost surely, 2^77232193 is an apocalyptic number.

It is an amenable number.

77232193 is a deficient number, since it is larger than the sum of its proper divisors (1).

77232193 is an equidigital number, since it uses as much as digits as its factorization.

77232193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 77232193 is about 8788.1848524027. The cubic root of 77232193 is about 425.8592866239.

The spelling of 77232193 in words is "seventy-seven million, two hundred thirty-two thousand, one hundred ninety-three".