97309797 has 8 divisors (see below), whose sum is σ = 139726944. Its totient is φ = 59882928.

The previous prime is 97309783. The next prime is 97309799. The reversal of 97309797 is 79790379.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97309797 - 2⁷ = 97309669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97309799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247523 + ... + 1247600.

It is an arithmetic number, because the mean of its divisors is an integer number (17465868).

Almost surely, 2^97309797 is an apocalyptic number.

It is an amenable number.

97309797 is a deficient number, since it is larger than the sum of its proper divisors (42417147).

97309797 is a wasteful number, since it uses less digits than its factorization.

97309797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495139.

The product of its (nonzero) digits is 750141, while the sum is 51.

The square root of 97309797 is about 9864.5728240000. The cubic root of 97309797 is about 459.9587187277.

The spelling of 97309797 in words is "ninety-seven million, three hundred nine thousand, seven hundred ninety-seven".