76197217 has 2 divisors, whose sum is σ = 76197218. Its totient is φ = 76197216.

The previous prime is 76197197. The next prime is 76197221. The reversal of 76197217 is 71279167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76055841 + 141376 = 8721^2 + 376^2 .

It is an emirp because it is prime and its reverse (71279167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76197217 - 2¹⁵ = 76164449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76197217.

It is not a weakly prime, because it can be changed into another prime (76191217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38098608 + 38098609.

It is an arithmetic number, because the mean of its divisors is an integer number (38098609).

Almost surely, 2^76197217 is an apocalyptic number.

It is an amenable number.

76197217 is a deficient number, since it is larger than the sum of its proper divisors (1).

76197217 is an equidigital number, since it uses as much as digits as its factorization.

76197217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37044, while the sum is 40.

The square root of 76197217 is about 8729.1017292732. The cubic root of 76197217 is about 423.9484351229.

The spelling of 76197217 in words is "seventy-six million, one hundred ninety-seven thousand, two hundred seventeen".