76320197 has 2 divisors, whose sum is σ = 76320198. Its totient is φ = 76320196.

The previous prime is 76320163. The next prime is 76320239. The reversal of 76320197 is 79102367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 6280036 = 8369^2 + 2506^2 .

It is an emirp because it is prime and its reverse (79102367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76320197 - 2⁶ = 76320133 is a prime.

It is a super-3 number, since 3×76320197³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76320107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38160098 + 38160099.

It is an arithmetic number, because the mean of its divisors is an integer number (38160099).

Almost surely, 2^76320197 is an apocalyptic number.

It is an amenable number.

76320197 is a deficient number, since it is larger than the sum of its proper divisors (1).

76320197 is an equidigital number, since it uses as much as digits as its factorization.

76320197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 76320197 is about 8736.1431421423. The cubic root of 76320197 is about 424.1763925053.

The spelling of 76320197 in words is "seventy-six million, three hundred twenty thousand, one hundred ninety-seven".