70947061 has 4 divisors (see below), whose sum is σ = 71678572. Its totient is φ = 70215552.

The previous prime is 70947059. The next prime is 70947067. The reversal of 70947061 is 16074907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36360900 + 34586161 = 6030^2 + 5881^2 .

It is a cyclic number.

It is not a de Polignac number, because 70947061 - 2¹ = 70947059 is a prime.

It is a super-3 number, since 3×70947061³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70947067) 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, 365610 + ... + 365803.

It is an arithmetic number, because the mean of its divisors is an integer number (17919643).

Almost surely, 2^70947061 is an apocalyptic number.

It is an amenable number.

70947061 is a deficient number, since it is larger than the sum of its proper divisors (731511).

70947061 is an equidigital number, since it uses as much as digits as its factorization.

70947061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731510.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70947061 is about 8423.0078356844. The cubic root of 70947061 is about 413.9788335075.

The spelling of 70947061 in words is "seventy million, nine hundred forty-seven thousand, sixty-one".