97043215 has 4 divisors (see below), whose sum is σ = 116451864. Its totient is φ = 77634568.

The previous prime is 97043213. The next prime is 97043231. The reversal of 97043215 is 51234079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51234079 = 13 ⋅3941083.

It is a cyclic number.

It is not a de Polignac number, because 97043215 - 2¹ = 97043213 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 (97043213) 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, 9704317 + ... + 9704326.

It is an arithmetic number, because the mean of its divisors is an integer number (29112966).

Almost surely, 2^97043215 is an apocalyptic number.

97043215 is a deficient number, since it is larger than the sum of its proper divisors (19408649).

97043215 is a wasteful number, since it uses less digits than its factorization.

97043215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19408648.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 97043215 is about 9851.0514667217. The cubic root of 97043215 is about 459.5383127668.

The spelling of 97043215 in words is "ninety-seven million, forty-three thousand, two hundred fifteen".