97730147 has 2 divisors, whose sum is σ = 97730148. Its totient is φ = 97730146.

The previous prime is 97730131. The next prime is 97730173. The reversal of 97730147 is 74103779.

It is a weak prime.

It is an emirp because it is prime and its reverse (74103779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97730147 - 2⁴ = 97730131 is a prime.

It is a super-3 number, since 3×97730147³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97730147.

It is not a weakly prime, because it can be changed into another prime (97730107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48865073 + 48865074.

It is an arithmetic number, because the mean of its divisors is an integer number (48865074).

Almost surely, 2^97730147 is an apocalyptic number.

97730147 is a deficient number, since it is larger than the sum of its proper divisors (1).

97730147 is an equidigital number, since it uses as much as digits as its factorization.

97730147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 97730147 is about 9885.8559062936. The cubic root of 97730147 is about 460.6200632975.

The spelling of 97730147 in words is "ninety-seven million, seven hundred thirty thousand, one hundred forty-seven".