77538103 has 2 divisors, whose sum is σ = 77538104. Its totient is φ = 77538102.

The previous prime is 77538101. The next prime is 77538119. The reversal of 77538103 is 30183577.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77538103 - 2¹ = 77538101 is a prime.

Together with 77538101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77538101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38769051 + 38769052.

It is an arithmetic number, because the mean of its divisors is an integer number (38769052).

Almost surely, 2^77538103 is an apocalyptic number.

77538103 is a deficient number, since it is larger than the sum of its proper divisors (1).

77538103 is an equidigital number, since it uses as much as digits as its factorization.

77538103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 77538103 is about 8805.5722698755. The cubic root of 77538103 is about 426.4208097602.

The spelling of 77538103 in words is "seventy-seven million, five hundred thirty-eight thousand, one hundred three".