97322021 has 4 divisors (see below), whose sum is σ = 97357932. Its totient is φ = 97286112.

The previous prime is 97321997. The next prime is 97322053. The reversal of 97322021 is 12022379.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88830625 + 8491396 = 9425^2 + 2914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97322021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97322221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13526 + ... + 19431.

It is an arithmetic number, because the mean of its divisors is an integer number (24339483).

Almost surely, 2^97322021 is an apocalyptic number.

It is an amenable number.

97322021 is a deficient number, since it is larger than the sum of its proper divisors (35911).

97322021 is a wasteful number, since it uses less digits than its factorization.

97322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35910.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 97322021 is about 9865.1923954883. The cubic root of 97322021 is about 459.9779778367.

The spelling of 97322021 in words is "ninety-seven million, three hundred twenty-two thousand, twenty-one".