77432107 has 2 divisors, whose sum is σ = 77432108. Its totient is φ = 77432106.

The previous prime is 77432081. The next prime is 77432123. The reversal of 77432107 is 70123477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77432107 - 2⁷ = 77431979 is a prime.

It is not a weakly prime, because it can be changed into another prime (77432177) 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, 38716053 + 38716054.

It is an arithmetic number, because the mean of its divisors is an integer number (38716054).

Almost surely, 2^77432107 is an apocalyptic number.

77432107 is a deficient number, since it is larger than the sum of its proper divisors (1).

77432107 is an equidigital number, since it uses as much as digits as its factorization.

77432107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 77432107 is about 8799.5515226630. The cubic root of 77432107 is about 426.2264128123.

The spelling of 77432107 in words is "seventy-seven million, four hundred thirty-two thousand, one hundred seven".