97961211 has 8 divisors (see below), whose sum is σ = 145127760. Its totient is φ = 65307456.

The previous prime is 97961161. The next prime is 97961221. The reversal of 97961211 is 11216979.

It is not a de Polignac number, because 97961211 - 2⁹ = 97960699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97961221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814070 + ... + 1814123.

It is an arithmetic number, because the mean of its divisors is an integer number (18140970).

Almost surely, 2^97961211 is an apocalyptic number.

97961211 is a deficient number, since it is larger than the sum of its proper divisors (47166549).

97961211 is a wasteful number, since it uses less digits than its factorization.

97961211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628202 (or 3628196 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 97961211 is about 9897.5356023608. The cubic root of 97961211 is about 460.9827932150.

The spelling of 97961211 in words is "ninety-seven million, nine hundred sixty-one thousand, two hundred eleven".