70941517 has 2 divisors, whose sum is σ = 70941518. Its totient is φ = 70941516.

The previous prime is 70941457. The next prime is 70941523. The reversal of 70941517 is 71514907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69455556 + 1485961 = 8334^2 + 1219^2 .

It is an emirp because it is prime and its reverse (71514907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70941517 - 2¹¹ = 70939469 is a prime.

It is a super-2 number, since 2×70941517² = 10065397668522578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70941557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35470758 + 35470759.

It is an arithmetic number, because the mean of its divisors is an integer number (35470759).

Almost surely, 2^70941517 is an apocalyptic number.

It is an amenable number.

70941517 is a deficient number, since it is larger than the sum of its proper divisors (1).

70941517 is an equidigital number, since it uses as much as digits as its factorization.

70941517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 70941517 is about 8422.6787306652. The cubic root of 70941517 is about 413.9680500755.

The spelling of 70941517 in words is "seventy million, nine hundred forty-one thousand, five hundred seventeen".