77485123 has 2 divisors, whose sum is σ = 77485124. Its totient is φ = 77485122.

The previous prime is 77485087. The next prime is 77485139. The reversal of 77485123 is 32158477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77485123 - 2⁹ = 77484611 is a prime.

It is not a weakly prime, because it can be changed into another prime (77485153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38742561 + 38742562.

It is an arithmetic number, because the mean of its divisors is an integer number (38742562).

Almost surely, 2^77485123 is an apocalyptic number.

77485123 is a deficient number, since it is larger than the sum of its proper divisors (1).

77485123 is an equidigital number, since it uses as much as digits as its factorization.

77485123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 77485123 is about 8802.5634334551. The cubic root of 77485123 is about 426.3236664588.

The spelling of 77485123 in words is "seventy-seven million, four hundred eighty-five thousand, one hundred twenty-three".