76798217 has 2 divisors, whose sum is σ = 76798218. Its totient is φ = 76798216.

The previous prime is 76798201. The next prime is 76798223. The reversal of 76798217 is 71289767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49716601 + 27081616 = 7051^2 + 5204^2 .

It is a cyclic number.

It is not a de Polignac number, because 76798217 - 2⁴ = 76798201 is a prime.

It is a super-2 number, since 2×76798217² = 11795932268758178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76798237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38399108 + 38399109.

It is an arithmetic number, because the mean of its divisors is an integer number (38399109).

Almost surely, 2^76798217 is an apocalyptic number.

It is an amenable number.

76798217 is a deficient number, since it is larger than the sum of its proper divisors (1).

76798217 is an equidigital number, since it uses as much as digits as its factorization.

76798217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 47.

The square root of 76798217 is about 8763.4591914380. The cubic root of 76798217 is about 425.0601382027.

The spelling of 76798217 in words is "seventy-six million, seven hundred ninety-eight thousand, two hundred seventeen".