97071211 has 4 divisors (see below), whose sum is σ = 97092112. Its totient is φ = 97050312.

The previous prime is 97071197. The next prime is 97071229. The reversal of 97071211 is 11217079.

97071211 is a nontrivial binomial coefficient, being equal to C(13934, 2).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11217079 = 53 ⋅211643.

It is a 3-Lehmer number, since φ(97071211) divides (97071211-1)³.

It is a cyclic number.

It is not a de Polignac number, because 97071211 - 2⁵ = 97071179 is a prime.

It is a deceptive number, since it divides R_97071210.

It is a self number, because there is not a number n which added to its sum of digits gives 97071211.

It is not an unprimeable number, because it can be changed into a prime (97071281) 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, 1 + ... + 13933.

It is an arithmetic number, because the mean of its divisors is an integer number (24273028).

Almost surely, 2^97071211 is an apocalyptic number.

97071211 is the 13933-rd triangular number and also the 6967-th hexagonal number.

97071211 is the 4645-th centered nonagonal number.

97071211 is a deficient number, since it is larger than the sum of its proper divisors (20901).

97071211 is a wasteful number, since it uses less digits than its factorization.

97071211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20900.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 97071211 is about 9852.4723293192. The cubic root of 97071211 is about 459.5824992585.

The spelling of 97071211 in words is "ninety-seven million, seventy-one thousand, two hundred eleven".