97220307 has 32 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 61191680.

The previous prime is 97220303. The next prime is 97220311. The reversal of 97220307 is 70302279.

It is an interprime number because it is at equal distance from previous prime (97220303) and next prime (97220311).

It is not a de Polignac number, because 97220307 - 2² = 97220303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97220303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 908548 + ... + 908654.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^97220307 is an apocalyptic number.

97220307 is a deficient number, since it is larger than the sum of its proper divisors (39948333).

97220307 is a wasteful number, since it uses less digits than its factorization.

97220307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 97220307 is about 9860.0358518618. The cubic root of 97220307 is about 459.8176766420.

The spelling of 97220307 in words is "ninety-seven million, two hundred twenty thousand, three hundred seven".