97940723 has 4 divisors (see below), whose sum is σ = 103701960. Its totient is φ = 92179488.

The previous prime is 97940719. The next prime is 97940753. The reversal of 97940723 is 32704979.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97940723 - 2² = 97940719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97940753) 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 3 ways as a sum of consecutive naturals, for example, 2880593 + ... + 2880626.

It is an arithmetic number, because the mean of its divisors is an integer number (25925490).

Almost surely, 2^97940723 is an apocalyptic number.

97940723 is a deficient number, since it is larger than the sum of its proper divisors (5761237).

97940723 is a wasteful number, since it uses less digits than its factorization.

97940723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761236.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 97940723 is about 9896.5005431213. The cubic root of 97940723 is about 460.9506537118.

The spelling of 97940723 in words is "ninety-seven million, nine hundred forty thousand, seven hundred twenty-three".