77214497 has 2 divisors, whose sum is σ = 77214498. Its totient is φ = 77214496.

The previous prime is 77214469. The next prime is 77214503. The reversal of 77214497 is 79441277.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 17986081 = 7696^2 + 4241^2 .

It is an emirp because it is prime and its reverse (79441277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77214497 - 2¹⁴ = 77198113 is a prime.

It is not a weakly prime, because it can be changed into another prime (77214407) 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, 38607248 + 38607249.

It is an arithmetic number, because the mean of its divisors is an integer number (38607249).

Almost surely, 2^77214497 is an apocalyptic number.

It is an amenable number.

77214497 is a deficient number, since it is larger than the sum of its proper divisors (1).

77214497 is an equidigital number, since it uses as much as digits as its factorization.

77214497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 41.

The square root of 77214497 is about 8787.1779884102. The cubic root of 77214497 is about 425.8267588170.

The spelling of 77214497 in words is "seventy-seven million, two hundred fourteen thousand, four hundred ninety-seven".