70217479 has 2 divisors, whose sum is σ = 70217480. Its totient is φ = 70217478.

The previous prime is 70217467. The next prime is 70217489. The reversal of 70217479 is 97471207.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70217479 - 2⁵ = 70217447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70217489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35108739 + 35108740.

It is an arithmetic number, because the mean of its divisors is an integer number (35108740).

Almost surely, 2^70217479 is an apocalyptic number.

70217479 is a deficient number, since it is larger than the sum of its proper divisors (1).

70217479 is an equidigital number, since it uses as much as digits as its factorization.

70217479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 70217479 is about 8379.5870423309. The cubic root of 70217479 is about 412.5548949288.

It can be divided in two parts, 702 and 17479, that added together give a palindrome (18181).

The spelling of 70217479 in words is "seventy million, two hundred seventeen thousand, four hundred seventy-nine".