170232397 has 2 divisors, whose sum is σ = 170232398. Its totient is φ = 170232396.

The previous prime is 170232389. The next prime is 170232427. The reversal of 170232397 is 793232071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95824521 + 74407876 = 9789^2 + 8626^2 .

It is a cyclic number.

It is not a de Polignac number, because 170232397 - 2³ = 170232389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170232317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85116198 + 85116199.

It is an arithmetic number, because the mean of its divisors is an integer number (85116199).

Almost surely, 2^170232397 is an apocalyptic number.

It is an amenable number.

170232397 is a deficient number, since it is larger than the sum of its proper divisors (1).

170232397 is an equidigital number, since it uses as much as digits as its factorization.

170232397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 170232397 is about 13047.3137848371. The cubic root of 170232397 is about 554.2181420994.

The spelling of 170232397 in words is "one hundred seventy million, two hundred thirty-two thousand, three hundred ninety-seven".