70688041 has 4 divisors (see below), whose sum is σ = 70704900. Its totient is φ = 70671184.

The previous prime is 70688021. The next prime is 70688063. The reversal of 70688041 is 14088607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 46717225 + 23970816 = 6835^2 + 4896^2 .

It is a cyclic number.

It is not a de Polignac number, because 70688041 - 2²⁵ = 37133609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70687988 and 70688006.

It is not an unprimeable number, because it can be changed into a prime (70688021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (17676225).

Almost surely, 2^70688041 is an apocalyptic number.

It is an amenable number.

70688041 is a deficient number, since it is larger than the sum of its proper divisors (16859).

70688041 is an equidigital number, since it uses as much as digits as its factorization.

70688041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16858.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 70688041 is about 8407.6180336645. The cubic root of 70688041 is about 413.4744219326.

The spelling of 70688041 in words is "seventy million, six hundred eighty-eight thousand, forty-one".