97223867636 has 18 divisors (see below), whose sum is σ = 197920016658. Its totient is φ = 41667371760.

The previous prime is 97223867633. The next prime is 97223867647. The reversal of 97223867636 is 63676832279.

It can be written as a sum of positive squares in only one way, i.e., 96997365136 + 226502500 = 311444^2 + 15050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97223867633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248019875 + ... + 248020266.

It is an arithmetic number, because the mean of its divisors is an integer number (10995556481).

Almost surely, 2^97223867636 is an apocalyptic number.

It is an amenable number.

97223867636 is an abundant number, since it is smaller than the sum of its proper divisors (100696149022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97223867636 is a wasteful number, since it uses less digits than its factorization.

97223867636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496040159 (or 496040150 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 59.

The spelling of 97223867636 in words is "ninety-seven billion, two hundred twenty-three million, eight hundred sixty-seven thousand, six hundred thirty-six".