97522909 has 4 divisors (see below), whose sum is σ = 106388640. Its totient is φ = 88657180.

The previous prime is 97522889. The next prime is 97522913. The reversal of 97522909 is 90922579.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97522909 - 2¹³ = 97514717 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 (97522939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4432849 + ... + 4432870.

It is an arithmetic number, because the mean of its divisors is an integer number (26597160).

Almost surely, 2^97522909 is an apocalyptic number.

It is an amenable number.

97522909 is a deficient number, since it is larger than the sum of its proper divisors (8865731).

97522909 is a wasteful number, since it uses less digits than its factorization.

97522909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8865730.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 97522909 is about 9875.3688032397. The cubic root of 97522909 is about 460.2942493548.

The spelling of 97522909 in words is "ninety-seven million, five hundred twenty-two thousand, nine hundred nine".