73965197 has 2 divisors, whose sum is σ = 73965198. Its totient is φ = 73965196.

The previous prime is 73965191. The next prime is 73965209. The reversal of 73965197 is 79156937.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65836996 + 8128201 = 8114^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 73965197 - 2¹⁰ = 73964173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73965191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36982598 + 36982599.

It is an arithmetic number, because the mean of its divisors is an integer number (36982599).

Almost surely, 2^73965197 is an apocalyptic number.

It is an amenable number.

73965197 is a deficient number, since it is larger than the sum of its proper divisors (1).

73965197 is an equidigital number, since it uses as much as digits as its factorization.

73965197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357210, while the sum is 47.

The square root of 73965197 is about 8600.3021458551. The cubic root of 73965197 is about 419.7678176259.

The spelling of 73965197 in words is "seventy-three million, nine hundred sixty-five thousand, one hundred ninety-seven".