77418041 has 2 divisors, whose sum is σ = 77418042. Its totient is φ = 77418040.

The previous prime is 77418007. The next prime is 77418043. The reversal of 77418041 is 14081477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74459641 + 2958400 = 8629^2 + 1720^2 .

It is an emirp because it is prime and its reverse (14081477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77418041 - 2¹⁰ = 77417017 is a prime.

Together with 77418043, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4527545 and since 77418041 and 4527545 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 77417989 and 77418007.

It is not a weakly prime, because it can be changed into another prime (77418043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38709020 + 38709021.

It is an arithmetic number, because the mean of its divisors is an integer number (38709021).

Almost surely, 2^77418041 is an apocalyptic number.

It is an amenable number.

77418041 is a deficient number, since it is larger than the sum of its proper divisors (1).

77418041 is an equidigital number, since it uses as much as digits as its factorization.

77418041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 77418041 is about 8798.7522410851. The cubic root of 77418041 is about 426.2006024002.

The spelling of 77418041 in words is "seventy-seven million, four hundred eighteen thousand, forty-one".