170983457 has 2 divisors, whose sum is σ = 170983458. Its totient is φ = 170983456.

The previous prime is 170983429. The next prime is 170983469. The reversal of 170983457 is 754389071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170981776 + 1681 = 13076^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 170983457 - 2⁸ = 170983201 is a prime.

It is not a weakly prime, because it can be changed into another prime (170983157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85491728 + 85491729.

It is an arithmetic number, because the mean of its divisors is an integer number (85491729).

Almost surely, 2^170983457 is an apocalyptic number.

It is an amenable number.

170983457 is a deficient number, since it is larger than the sum of its proper divisors (1).

170983457 is an equidigital number, since it uses as much as digits as its factorization.

170983457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 170983457 is about 13076.0642779087. The cubic root of 170983457 is about 555.0320107068.

The spelling of 170983457 in words is "one hundred seventy million, nine hundred eighty-three thousand, four hundred fifty-seven".