97946213 has 4 divisors (see below), whose sum is σ = 102204768. Its totient is φ = 93687660.

The previous prime is 97946183. The next prime is 97946221. The reversal of 97946213 is 31264979.

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 97946213 - 2¹⁰ = 97945189 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 (97946243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129243 + ... + 2129288.

It is an arithmetic number, because the mean of its divisors is an integer number (25551192).

Almost surely, 2^97946213 is an apocalyptic number.

It is an amenable number.

97946213 is a deficient number, since it is larger than the sum of its proper divisors (4258555).

97946213 is a wasteful number, since it uses less digits than its factorization.

97946213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258554.

The product of its digits is 81648, while the sum is 41.

The square root of 97946213 is about 9896.7779100069. Note that the first 3 decimals coincide. The cubic root of 97946213 is about 460.9592663083.

The spelling of 97946213 in words is "ninety-seven million, nine hundred forty-six thousand, two hundred thirteen".