97420797 has 12 divisors (see below), whose sum is σ = 144151644. Its totient is φ = 63362880.

The previous prime is 97420793. The next prime is 97420823. The reversal of 97420797 is 79702479.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3059001 + 94361796 = 1749^2 + 9714^2 .

It is not a de Polignac number, because 97420797 - 2² = 97420793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97420793) 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 11 ways as a sum of consecutive naturals, for example, 131638 + ... + 132375.

It is an arithmetic number, because the mean of its divisors is an integer number (12012637).

Almost surely, 2^97420797 is an apocalyptic number.

It is an amenable number.

97420797 is a deficient number, since it is larger than the sum of its proper divisors (46730847).

97420797 is a wasteful number, since it uses less digits than its factorization.

97420797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264060 (or 264057 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 97420797 is about 9870.1974144391. The cubic root of 97420797 is about 460.1335418832.

The spelling of 97420797 in words is "ninety-seven million, four hundred twenty thousand, seven hundred ninety-seven".