73318897 has 2 divisors, whose sum is σ = 73318898. Its totient is φ = 73318896.

The previous prime is 73318879. The next prime is 73318951. The reversal of 73318897 is 79881337.

It is a happy number.

Together with previous prime (73318879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45819361 + 27499536 = 6769^2 + 5244^2 .

It is an emirp because it is prime and its reverse (79881337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73318897 - 2²³ = 64930289 is a prime.

It is not a weakly prime, because it can be changed into another prime (73318097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36659448 + 36659449.

It is an arithmetic number, because the mean of its divisors is an integer number (36659449).

Almost surely, 2^73318897 is an apocalyptic number.

It is an amenable number.

73318897 is a deficient number, since it is larger than the sum of its proper divisors (1).

73318897 is an equidigital number, since it uses as much as digits as its factorization.

73318897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 73318897 is about 8562.6454440202. The cubic root of 73318897 is about 418.5416103693.

The spelling of 73318897 in words is "seventy-three million, three hundred eighteen thousand, eight hundred ninety-seven".