170042707 has 2 divisors, whose sum is σ = 170042708. Its totient is φ = 170042706.

The previous prime is 170042669. The next prime is 170042737. The reversal of 170042707 is 707240071.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170042707 is a prime.

It is not a weakly prime, because it can be changed into another prime (170042737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85021353 + 85021354.

It is an arithmetic number, because the mean of its divisors is an integer number (85021354).

Almost surely, 2^170042707 is an apocalyptic number.

170042707 is a deficient number, since it is larger than the sum of its proper divisors (1).

170042707 is an equidigital number, since it uses as much as digits as its factorization.

170042707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 170042707 is about 13040.0424462499. The cubic root of 170042707 is about 554.0122104552.

Adding to 170042707 its reverse (707240071), we get a palindrome (877282778).

The spelling of 170042707 in words is "one hundred seventy million, forty-two thousand, seven hundred seven".