73422197 has 2 divisors, whose sum is σ = 73422198. Its totient is φ = 73422196.

The previous prime is 73422179. The next prime is 73422221. The reversal of 73422197 is 79122437.

Together with previous prime (73422179) 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., 64144081 + 9278116 = 8009^2 + 3046^2 .

It is a cyclic number.

It is not a de Polignac number, because 73422197 - 2¹⁸ = 73160053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73422397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36711098 + 36711099.

It is an arithmetic number, because the mean of its divisors is an integer number (36711099).

Almost surely, 2^73422197 is an apocalyptic number.

It is an amenable number.

73422197 is a deficient number, since it is larger than the sum of its proper divisors (1).

73422197 is an equidigital number, since it uses as much as digits as its factorization.

73422197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 73422197 is about 8568.6753351962. The cubic root of 73422197 is about 418.7380811340.

The spelling of 73422197 in words is "seventy-three million, four hundred twenty-two thousand, one hundred ninety-seven".