97477217 has 2 divisors, whose sum is σ = 97477218. Its totient is φ = 97477216.

The previous prime is 97477189. The next prime is 97477223. The reversal of 97477217 is 71277479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76720081 + 20757136 = 8759^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 97477217 - 2⁶ = 97477153 is a prime.

It is not a weakly prime, because it can be changed into another prime (97477267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48738608 + 48738609.

It is an arithmetic number, because the mean of its divisors is an integer number (48738609).

Almost surely, 2^97477217 is an apocalyptic number.

It is an amenable number.

97477217 is a deficient number, since it is larger than the sum of its proper divisors (1).

97477217 is an equidigital number, since it uses as much as digits as its factorization.

97477217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172872, while the sum is 44.

The square root of 97477217 is about 9873.0550996133. The cubic root of 97477217 is about 460.2223515462. Note that the first 3 decimals are identical.

The spelling of 97477217 in words is "ninety-seven million, four hundred seventy-seven thousand, two hundred seventeen".