97211005 has 8 divisors (see below), whose sum is σ = 116932824. Its totient is φ = 77582400.

The previous prime is 97210991. The next prime is 97211047. The reversal of 97211005 is 50011279.

It can be written as a sum of positive squares in 4 ways, for example, as 1425636 + 95785369 = 1194^2 + 9787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97211005 - 2⁹ = 97210493 is a prime.

It is a super-2 number, since 2×97211005² = 18899958986220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20986 + ... + 25195.

It is an arithmetic number, because the mean of its divisors is an integer number (14616603).

Almost surely, 2^97211005 is an apocalyptic number.

It is an amenable number.

97211005 is a deficient number, since it is larger than the sum of its proper divisors (19721819).

97211005 is a wasteful number, since it uses less digits than its factorization.

97211005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46607.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 97211005 is about 9859.5641384394. The cubic root of 97211005 is about 459.8030111173.

The spelling of 97211005 in words is "ninety-seven million, two hundred eleven thousand, five".