73189297 has 2 divisors, whose sum is σ = 73189298. Its totient is φ = 73189296.

The previous prime is 73189283. The next prime is 73189327. The reversal of 73189297 is 79298137.

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., 73119601 + 69696 = 8551^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 73189297 - 2⁷ = 73189169 is a prime.

It is not a weakly prime, because it can be changed into another prime (73129297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36594648 + 36594649.

It is an arithmetic number, because the mean of its divisors is an integer number (36594649).

Almost surely, 2^73189297 is an apocalyptic number.

It is an amenable number.

73189297 is a deficient number, since it is larger than the sum of its proper divisors (1).

73189297 is an equidigital number, since it uses as much as digits as its factorization.

73189297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 46.

The square root of 73189297 is about 8555.0743421668. The cubic root of 73189297 is about 418.2948573189.

It can be divided in two parts, 7318929 and 7, that multiplied together give a triangular number (51232503 = T₁₀₁₂₂).

The spelling of 73189297 in words is "seventy-three million, one hundred eighty-nine thousand, two hundred ninety-seven".