2170727497 has 2 divisors, whose sum is σ = 2170727498. Its totient is φ = 2170727496.

The previous prime is 2170727453. The next prime is 2170727513. The reversal of 2170727497 is 7947270712.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1188594576 + 982132921 = 34476^2 + 31339^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170727497 - 2²³ = 2162338889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2170727597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085363748 + 1085363749.

It is an arithmetic number, because the mean of its divisors is an integer number (1085363749).

Almost surely, 2^2170727497 is an apocalyptic number.

It is an amenable number.

2170727497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170727497 is an equidigital number, since it uses as much as digits as its factorization.

2170727497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 46.

The square root of 2170727497 is about 46591.0667081148. The cubic root of 2170727497 is about 1294.7972525374.

The spelling of 2170727497 in words is "two billion, one hundred seventy million, seven hundred twenty-seven thousand, four hundred ninety-seven".