97401217 has 4 divisors (see below), whose sum is σ = 97446996. Its totient is φ = 97355440.

The previous prime is 97401209. The next prime is 97401221. The reversal of 97401217 is 71210479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71210479 = 719 ⋅99041.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 55294096 = 6489^2 + 7436^2 .

It is a cyclic number.

It is not a de Polignac number, because 97401217 - 2³ = 97401209 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97401817) 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, 19534 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (24361749).

Almost surely, 2^97401217 is an apocalyptic number.

It is an amenable number.

97401217 is a deficient number, since it is larger than the sum of its proper divisors (45779).

97401217 is a wasteful number, since it uses less digits than its factorization.

97401217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45778.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 97401217 is about 9869.2054898051. The cubic root of 97401217 is about 460.1027133583.

The spelling of 97401217 in words is "ninety-seven million, four hundred one thousand, two hundred seventeen".