97213575 has 12 divisors (see below), whose sum is σ = 160726568. Its totient is φ = 51847200.

The previous prime is 97213573. The next prime is 97213577. The reversal of 97213575 is 57531279.

It is an interprime number because it is at equal distance from previous prime (97213573) and next prime (97213577).

It is not a de Polignac number, because 97213575 - 2¹ = 97213573 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 (97213573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 648016 + ... + 648165.

Almost surely, 2^97213575 is an apocalyptic number.

97213575 is a deficient number, since it is larger than the sum of its proper divisors (63512993).

97213575 is a wasteful number, since it uses less digits than its factorization.

97213575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296194 (or 1296189 counting only the distinct ones).

The product of its digits is 66150, while the sum is 39.

The square root of 97213575 is about 9859.6944678829. The cubic root of 97213575 is about 459.8070630705.

The spelling of 97213575 in words is "ninety-seven million, two hundred thirteen thousand, five hundred seventy-five".